Research Article |
Corresponding author: Yasmina Marin-Felix ( yasmina.marinfelix@helmholtz-hzi.de ) Academic editor: Huzefa Raja
© 2023 Christopher Lambert, Lena Schweizer, Blondelle Matio Kemkuignou, Elodie Gisèle M. Anoumedem, Simeon F. Kouam, Yasmina Marin-Felix.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Lambert C, Schweizer L, Matio Kemkuignou B, Anoumedem EGM, Kouam SF, Marin-Felix Y (2023) Four new endophytic species of Diaporthe (Diaporthaceae, Diaporthales) isolated from Cameroon. MycoKeys 99: 319-362. https://doi.org/10.3897/mycokeys.99.110043
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The genus Diaporthe (Diaporthaceae, Diaporthales) is a large group of fungi frequently reported as phytopathogens, with ubiquitous distribution across the globe. Diaporthe have traditionally been characterized by the morphology of their ana- and teleomorphic state, revealing a high degree of heterogeneity as soon as DNA sequencing was utilized across the different members of the group. Their relevance for biotechnology and agriculture attracts the attention of taxonomists and natural product chemists alike in context of plant protection and exploitation for their potential to produce bioactive secondary metabolites. While more than 1000 species are described to date, Africa, as a natural habitat, has so far been under-sampled. Several endophytic fungi belonging to Diaporthe were isolated from different plant hosts in Cameroon over the course of this study. Phylogenetic analyses based on DNA sequence data of the internal transcribed spacer region and intervening 5.8S nrRNA gene, and partial fragments of the calmodulin, beta-tubulin, histone and the translation elongation factor 1-α genes, demonstrated that these isolates represent four new species, i.e. D. brideliae, D. cameroonensis, D. pseudoanacardii and D. rauvolfiae. Moreover, the description of D. isoberliniae is here emended, now incorporating the morphology of beta and gamma conidia produced by two of our endophytic isolates, which had never been documented in previous records. Moreover, the paraphyletic nature of the genus is discussed and suggestions are made for future revision of the genus.
Endophytes, Phomopsis, Sordariomycetes, 4 new taxa
The genus Diaporthe (Diaporthaceae, Diaporthales, Sordariomycetes) is a group of fungi attracting considerable interest for its occurrence as plant pathogens, endophytes and saprobes, and its biotechnological potential as producers of secondary metabolites (
Besides rarely occurring infections in immunocompromised human individuals, members of the genus Diaporthe are most well-known as phytopathogens in agriculture (
Further embarking on charting the biodiversity of this genus for biotechnological exploitation, we here aimed to describe species diversity in an almost unstudied habitat, the planta from Cameroon. This paper describes the isolation, morphological and molecular characterization of fungal endophytes that were assigned to the genus Diaporthe.
Hyphal material (1 mm diam) was scratched from actively growing cultures on YM 6.3 agar (malt extract 10 g/L, yeast extract 4 g/L, D-glucose 4 g/L, agar 20 g/L, pH 6.3 before autoclaving) and transferred onto 9-cm-diam petri dishes containing 2% tap water agar supplemented with sterile pine needles (PNA) (
Genomic DNA was extracted using the EZ-10 SPIN column fungal genomic DNA minipreps Kit (Bio Basic Inc. Ontario, Canada) following manufacturer’s instructions. Six different loci were amplified, i.e. the internal transcribed spacer region (ITS), and fragments of the calmodulin (cal), histone 3 (his3), translation elongation factor 1-α (tef1) and beta-tubulin (tub2) genes. The ITS was amplified and sequenced using the primers ITS4 and ITS5 (
Isolates and reference strains of Diaporthe spp. included in the phylogenetic study. GenBank accession numbers in bold were newly generated in this study. Taxonomic novelties are indicated in bold italic.
Species | Isolates1 | GenBank accession numbers2 | References | ||||
---|---|---|---|---|---|---|---|
ITS | tub2 | his3 | tef1 | cal | |||
Diaporthe acaciarum | CBS 138862T | KP004460 | KP004509 | KP004504 | – | – |
|
D. acaciigena | CBS 129521T | KC343005 | KC343973 | KC343489 | KC343731 | KC343247 |
|
D. acericola | MFLUCC 17-0956T | KY964224 | KY964074 | – | KY964180 | KY964137 |
|
D. acerigena | CFCC 52554T | MH121489 | – | MH121449 | MH121531 | MH121413 |
|
D. acerina | CBS 137.27 | KC343006 | KC343974 | KC343490 | KC343732 | KC343248 |
|
D. acuta | PSCG 047T | MK626957 | MK691225 | MK726161 | MK654802 | MK691125 |
|
D. acutispora | CGMCC 3.18285T | KX986764 | KX999195 | KX999235 | KX999155 | KX999274 |
|
D. aestuarium | BRIP 59930aT | OM918686 | OM960613 | – | OM960595 | – |
|
D. africana | CBS 150080T | OR198681 | OR225229 | OR225231 | OR225227 | OR225233 |
|
D. afzeliae | SDBR-CMU467T | OQ600199 | OQ678279 | OQ646886 | OQ603502 | OQ646882 |
|
D. aitkeniae | BRIP 58827aT | OR019750 | OR039647 | – | OR039640 | – |
|
D. alangii | CFCC 52556T | MH121491 | MH121573 | MH121451 | MH121533 | MH121415 |
|
D. albosinensis | CFCC 53066T | MK432659 | MK578059 | MK443004 | MK578133 | MK442979 |
|
D. alleghaniensis | CBS 495.72T | FJ889444 | KC843228 | KC343491 | GQ250298 | KC343249 |
|
D. alnea | CBS 146.46T | KC343008 | KC343976 | KC343492 | KC343734 | KC343250 |
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D. ambigua | CBS 114015T | KC343010 | KC343978 | KC343494 | KC343736 | KC343252 |
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D. ampelina | CBS 114016T | AF230751 | JX275452 | – | GQ250351 | JX197443 |
|
D. amygdali | CBS 126679T | KC343022 | KC343990 | KC343506 | KC343748 | KC343264 |
|
D. amygdali | CGMCC 3.15183 | KC153098 | – | – | KC153089 | – |
|
D. anacardii | CBS 720.97T | KC343024 | KC343992 | KC343508 | KC343750 | KC343266 |
|
D. angelicae | CBS 111592T | KC343026 | KC343994 | KC343511 | KC343752 | KC343268 |
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D. anhuiensis | CNUCC 201902T | MN219727 | MN227009 | MN224550 | MN224669 | MN224556 |
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D. annellsiae | BRIP 59731aT | OM918687 | OM960614 | – | OM960596 | – |
|
D. antonovae | BRIP 58824bT | OR019751 | OR039648 | – | OR039641 | – |
|
D. apiculata | LC 3418T | KP267896 | KP293476 | KP293550 | KP267970 | – |
|
D. aquatica | IFRDCC 3051T | JQ797437 | – | – | – | – |
|
D. araucanorum | CBS 145285T | MN509711 | MN509722 | – | MN509733 | MN974277 |
|
D. arctii | CBS 136.25 | KC343031 | KC343999 | KC343515 | KC343757 | KC343273 |
|
D. arecae | CBS 161.64T | KC343032 | KC344000 | KC343516 | KC343758 | KC343274 |
|
D. arengae | CBS 114979T | KC343034 | KC344002 | KC343518 | KC343760 | KC343276 |
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D. arezzoensis | MFLU 19-2880T | MT185503 | MT454055 | – | – | – |
|
D. aseana | MFLUCC 12-0299aT | KT459414 | KT459432 | – | KT459448 | KT459464 |
|
D. asheicola | CBS 136967T | KJ160562 | KJ160518 | – | KJ160594 | KJ160542 |
|
D. aspalathi | CBS 117169T | KC343036 | KC344004 | KC343520 | KC343762 | KC343278 | Van Rensburg et al. (2006) |
D. atlantica | CECT 21217T | ON159893 | ON364040 | ON398810 | ON398831 | ON364019 |
|
D. australafricana | CBS 111886T | KC343038 | KC344006 | KC343522 | KC343764 | KC343280 |
|
D. australiana | BRIP 66145T | MN708222 | MN696530 | – | MN696522 | – |
|
D. australpacifica | BRIP 60163dT | OM918688 | OM960615 | – | OM960597 | – |
|
D. averrhoae | SCHM 3605T | AY618930 | – | – | – | – |
|
D. baccae | CBS 136972T | KJ160565 | MF418509 | MF418264 | KJ160597 | – |
|
D. batatas | CBS 122.21 | KC343040 | KC344008 | KC343524 | KC343766 | KC343282 |
|
D. bauhiniae | CFCC 53071T | MK432648 | MK578051 | MK442995 | MK578124 | MK442970 |
|
D. beasleyi | BRIP 59326aT | OM918689 | OM960616 | – | OM960598 | – |
|
D. beckhausii | CBS 138.27 | KC343041 | KC344009 | KC343525 | KC343767 | KC343283 |
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D. beilharziae | BRIP 54792T | JX862529 | KF170921 | – | JX862535 | – |
|
D. benedicti | ATCC MYA-4970T | KM669929 | – | – | KM669785, | KM669862 | Lawrence et al. (2015) |
D. berteroae | BRIP 57900aT | OR019752 | OR039649 | – | OR039642 | – |
|
D. betulae | CFCC 50469T | KT732950 | KT733020 | KT732999 | KT733016 | KT732997 |
|
D. betulicola | CFCC 51128T | KX024653 | KX024657 | KX024661 | KX024655 | KX024659 |
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D. betulina | CFCC 52562T | MH121497 | MH121579 | MH121457 | MH121539 | MH121421 |
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D. biconispora | CGMCC 3.17252T | KJ490597 | KJ490418 | KJ490539 | KJ490476 | – |
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D. bohemiae | CBS 143347T | MG281015 | MG281188 | MG281361 | MG281536 | MG281710 |
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D. bombacis | SDBR-CMU468T | OQ600198 | OQ678278 | OQ646885 | OQ603501 | OQ646881 |
|
D. bounty | BRIP 59361aT | OM918690 | OM960617 | – | OM960599 | – |
|
D. brasiliensis | CBS 133183T | KC343042 | KC344010 | KC343526 | KC343768 | KC343284 |
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D. breyniae | CBS 148910T | ON400846 | ON409186 | ON409187 | ON409188 | ON409189 |
|
D. brideliae | CBS 148911T | OR348649 | OR468827 | OR468807 | OR468817 | OR468837 | Present study |
D. brumptoniae | BRIP 59403aT | OM918702 | OM960629 | – | OM960611 | – |
|
D. butterlyi | BRIP 59194aT | OR019753 | OR039650 | – | OR039643 | – |
|
D. caatingaensis | CBS 141542T | KY085927 | KY115600 | KY115605 | KY115603 | KY115597 |
|
D. cameroonensis | CBS 148913T | OR348650 | OR468826 | OR468806 | OR468816 | OR468836 | Present study |
STMA 18289 | OR348651 | OR468825 | OR468805 | OR468815 | OR468835 | Present study | |
STMA 18290 | OR348652 | OR468824 | OR468804 | OR468814 | OR468834 | Present study | |
D. camelliae-oleiferae | HNZZ 027T | MZ509555 | MZ504718 | MZ504696 | MZ504707 | MZ504685 |
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D. camelliae-sinensis | SAUCC 194.92T | MT822620 | MT855817 | MT855588 | MT855932 | MT855699 |
|
D. camporesii | JZB 320143T | MN533805 | MN561316 | – | – | – |
|
D. canthii | CBS 132533T | JX069864 | KC843230 | – | KC843120 | KC843174 |
|
D. careyae | SDBR-CMU469T | OQ600196 | OQ678276 | OQ646883 | – | OQ646879 |
|
D. carpini | CBS 114437 | KC343044 | KC344012 | KC343528 | KC343770 | KC343286 |
|
D. carriae | BRIP 59932aT | OM918691 | OM960618 | – | OM960600 | – |
|
D. caryae | CFCC 52563T | MH121498 | MH121580 | MH121458 | MH121540 | MH121422 |
|
D. cassines | CBS 136440T | KF777155 | – | – | KF777244 | – |
|
D. caulivora | CBS 127268T | KC343045 | KC344013 | KC343529 | KC343771 | KC343287 |
|
D. celastrina | CBS 139.27T | KC343047 | KC344015 | KC343531 | KC343773 | KC343289 |
|
D. celeris | CBS 143349T | MG281017 | MG281190 | MG281363 | MG281538 | MG281712 |
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D. celticola | CFCC 53074T | MK573948 | MK574643 | MK574603 | MK574623 | MK574587 |
|
D. celtidis | NCYU 19-0357T | MW114346 | MW148266 | – | MW192209 | – |
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D. ceratozamiae | CBS 131306T | JQ044420 | – | – | – | – |
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D. cercidis | CFCC 52565T | MH121500 | MH121582 | MH121460 | MH121542 | MH121424 |
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D. cerradensis | CMRP 4331T | MN173198 | MW751671 | MW751663 | MT311685 | MW751655 |
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D. cf. heveae 1 | CBS 852.97 | KC343116 | KC344084 | KC343600 | KC343842 | KC343358 |
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D. cf. heveae 2 | CBS 681.84 | KC343117 | KC344085 | KC343601 | KC343843 | KC343359 |
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D. chamaeropis | CBS 454.81 | KC343048 | KC344016 | KC343532 | KC343774 | KC343290 |
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D. charlesworthii | BRIP 54884mT | KJ197288 | KJ197268 | – | KJ197250 | – |
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D. chensiensis | CFCC 52567T | MH121502 | MH121584 | MH121462 | MH121544 | MH121426 |
|
D. chiangmaiensis | MFLUCC 18-0544T | OK393703 | – | – | OL439483 | – |
|
D. chimonanthi | SCHM 3614T | AY622993 | – | – | – | – |
|
D. chinensis | MFLUCC 19-0101T | MW187324 | MW245013 | – | MW205017 | MW294199 |
|
D. chongqingensis | PSCG 435T | MK626916 | MK691321 | MK726257 | MK654866 | MK691209 |
|
D. chromolaenae | MFLUCC 17-1422T | MH094275 | – | – | – | – |
|
D. chrysalidocarpi | SAUCC 194.35T | MT822563 | MT855760 | MT855532 | MT855876 | MT855646 |
|
D. cichorii | MFLUCC 17-1023T | KY964220 | KY964104 | – | KY964176 | KY964133 |
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D. cinnamomi | CFCC 52569T | MH121504 | MH121586 | MH121464 | MH121546 | – |
|
D. cinerascens | CBS 719.96 | KC343050 | KC344018 | KC343534 | KC343776 | KC343292 |
|
D. cissampeli | CBS 141331T | KX228273 | KX228384 | KX228366 | – | – |
|
D. citri | CBS 135422T | KC843311 | KC843187 | MF418281 | KC843071 | KC843157 |
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D. citriasiana | CBS 134240T | JQ954645 | KC357459 | MF418282 | JQ954663 | KC357491 |
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D. citrichinensis | CBS 134242T | JQ954648 | MF418524 | KJ420880 | JQ954666 | KC357494 |
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D. clematidina | MFLUCC 17-2060T | MT310657 | MT394623 | – | MT394669 | MT394624 |
|
D. collariana | MFLUCC 17-2636T | MG806115 | MG783041 | – | MG783040 | MG783042 |
|
D. compacta | LC3083T | KP267854 | KP293434 | KP293508 | KP267928 | – |
|
D. conica | CFCC 52571T | MH121506 | MH121588 | MH121466 | MH121548 | MH121428 |
|
D. constrictospora | CGMCC 3.20096T | MT385947 | MT424702 | MW022487 | – | MT424718 |
|
D. convolvuli | CBS 124654 | KC343054 | KC344022 | KC343538 | KC343780 | KC343296 |
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D. coryli | CFCC 53083T | MK432661 | MK578061 | MK443006 | MK578135 | MK442981 |
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D. corylicola | CFCC 53986 | MW839880 | MW883977 | MW836717 | MW815894 | MW836684 |
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D. crataegi | CBS 114435 | KC343055 | KC344023 | KC343539 | KC343781 | KC343297 |
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D. crotalariae | CBS 162.33T | KC343056 | KC344024 | KC343540 | KC343782 | KC343298 |
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D. crousii | CAA823T | MK792311 | MK837932 | MK871450 | MK828081 | MK883835 |
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D. cucurbitae | DAOM 42078T | KM453210 | KP118848 | KM453212 | KM453211 | – |
|
D. cuppatea | CBS 117499T | AY339322 | JX275420 | KC343541 | AY339354 | JX197414 |
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D. cynaroidis | CBS 122676 | KC343058 | KC344026 | KC343542 | KC343784 | KC343300 |
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D. cytosporella | CBS 137020T | KC843307 | KC843221 | MF418283 | KC843116 | KC843141 |
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D. decedens | CBS 109772 | KC343059 | KC344027 | KC343543 | KC343785 | KC343301 |
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D. delonicis | MFLU 16-1059T | MT215490 | MT212209 | – | – | – |
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D. detrusa | CBS 109770 | KC343061 | KC344029 | KC343545 | KC343787 | KC343303 |
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D. diospyricola | CBS 136552T | KF777156 | – | – | – | – |
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D. discoidispora | ICMP 20662T | KJ490624 | KJ490445 | KJ490566 | KJ490503 | – |
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D. drenthii | BRIP 66524T | MN708229 | MN696537 | – | MN696526 | – |
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D. durionigena | VTCC 930005T | MN453530 | MT276159 | – | MT276157 | – |
|
D. eleagni | CBS 504.72 | KC343064 | KC344032 | KC343548 | KC343790 | KC343306 |
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D. elaeagni-glabrae | CGMCC 3.18287T | KX986779 | KX999212 | KX999251 | KX999171 | KX999281 |
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D. ellipsospora | CGMCC 3.20099T | MT385949 | MT424704 | MW022488 | MT424684 | MT424720 |
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D. endocitricola | ZHKUCC 20-0012 T | MT355682 | MT409290 | – | MT409336 | MT409312 |
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D. endophytica | CBS 133811T | KC343065 | KC344033 | KC343549 | KC343791 | KC343307 |
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D. eres | CBS 138594T | KJ210529 | KJ420799 | KJ420850 | KJ210550 | KJ434999 |
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D. eres | CFCC 51632 (type strain of D. camptothecicola) | KY203726 | KY228893 | KY228881 | KY228887 | KY228877 |
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D. eres | CGMCC 3.17089 (type strain of D. longicicola) | KF576267 | KF576291 | – | KF576242 | – |
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D. eres | MFLUCC 16-0113 (type strain of D. momicola) | KU557563 | KU557587 | – | KU557631 | KU557611 |
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D. eres | CGMCC 3.15181 (strain originally named D. mahothocarpi Nom. Inval.) | KC153096 | – | – | KC153087 | – |
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D. eres | CGMCC 3.17084 (type strain of D. ellipicola) | KF576270 | KF576291 | – | KF576245 | – |
|
D. eres | CGMCC 3.17081 (type strain of D. biguttusis) | KF576282 | KF576306 | – | KF576257 | – |
|
D. etinsideae | BRIP 64096aT | OM918692 | OM960619 | – | OM960601 | – |
|
D. eucalyptorum | CBS 132525T | JX069862 | – | – | – | – |
|
D. eugeniae | CBS 444.82 | KC343098 | KC344066 | KC343582 | KC343824 | KC343340 |
|
D. fibrosa | CBS 109751 | KC343099 | KC344067 | KC343583 | KC343825 | KC343341 |
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D. fici-septicae | MFLU 18-2588T | MW114348 | MW148268 | – | MW192211 | – |
|
D. foeniculina | CBS 111553T | KC343101 | KC344069 | KC343585 | KC343827 | KC343343 |
|
D. foeniculina | CBS 129528 | JF951146 | KC843205 | – | KC843100 | KC843124 |
|
D. foikelawen | CBS 145289T | MN509713 | MN509724 | – | MN509735 | MN974278 |
|
D. forlicesenica | MFLUCC 17-1015T | KY964215 | KY964099 | – | KY964171 | – |
|
D. fraxini-angustifoliae | BRIP 54781T | JX862528 | KF170920 | – | JX852534 | – |
|
D. fraxinicola | CFCC 52582T | MH121517 | – | – | MH121559 | MH121435 |
|
D. fructicola | MAFF 246408T | LC342734 | LC342736 | LC342737 | LC342735 | LC342738 |
|
D. fujianensis | JZB 320149T | MW010212 | MW056008 | – | MW20523 | MW205212 |
|
D. fukushii | MAFF 625034 | JQ807469 | – | – | JQ807418 | – |
|
D. fulvicolor | PSCG 051T | MK626859 | MK691236 | MK726163 | MK654806 | MK691132 |
|
D. fusicola | CGMCC 3.17087T | KF576281 | KF576305 | – | KF576256 | KF576233 |
|
D. fusiformis | JZB 320156T | MW010218 | MW056014 | – | MW205234 | MW205218 |
|
D. ganjae | CBS 180.91T | KC343112 | KC344080 | KC343596 | KC343838 | KC343354 |
|
D. ganzhouensis | CFCC 53087T | MK432665 | MK578065 | MK443010 | MK578139 | MK442985 |
|
D. gardeniae | CBS 288.56 | KC343113 | KC344081 | KC343597 | KC343839 | KC343355 |
|
D. garethjonesii | MFLUCC 12-0542aT | KT459423 | KT459441 | – | KT459457 | KT459470 |
|
D. glabrae | SCHM 3622T | AY601918 | – | – | – | – |
|
D. globoostiolata | MFLUCC 23-0025T | OQ600200 | OQ678280 | – | OQ603503 | – |
|
D. gossiae | BRIP 59730aT | OM918693 | OM960620 | – | OM960602 | – |
|
D. goulteri | BRIP 55657aT | KJ197290 | KJ197270 | – | KJ197252 | – |
|
D. grandiflori | SAUCC194.84T | MT822612 | MT855809 | MT85558 | MT855924 | MT855691 |
|
D. griceae | BRIP 67014aT | OM918694 | OM960621 | – | OM960603 | – |
|
D. guangdongensis | ZHKUCC 20-0014T | MT355684 | MT409292 | – | MT409338 | MT409314 |
|
D. guangxiensis | JZB 320094T | MK335772 | MK500168 | – | MK523566 | MK736727 |
|
D. guizhouensis | GZAAS 20-0338T | OM060254 | OL961762 | – | OL961761 | OL961763 |
|
D. gulyae | BRIP 54025T | JF431299 | KJ197271 | – | JN645803 | – |
|
D. guttulata | CGMCC 3.20100T | MT385950 | MT424705 | MW022491 | MT424685 | MW022470 |
|
D. hartii | BRIP 60285eT | OR019754 | OR039651 | – | OR039644 | – |
|
D. helianthi | CBS 592.81T | KC343115 | KC344083 | KC343599 | KC343841 | JX197454 |
|
D. helicis | CBS 138596T | KJ210538 | KJ420828 | KJ420875 | KJ210559 | KJ435043 |
|
D. heliconiae | SAUCC 194.77T | MT822605 | MT855802 | MT855573 | MT855917 | MT855684 |
|
D. heterophyllae | CBS 143769T | MG600222 | MG600226 | MG600220 | MG600224 | MG600218 |
|
D. heterostemmatis | SAUCC 194.85T | MT822613 | MT855810 | MT855581 | MT855925 | MT855692 |
|
D. hickoriae | CBS 145.26T | KC343118 | KC344086 | KC343602 | KC343844 | KC343360 |
|
D. hispaniae | CBS 143351T | MG281123 | MG281296 | MG281471 | MG281644 | MG281820 |
|
D. hongkongensis | CBS 115448T | KC343119 | KC344087 | KC343603 | KC343845 | KC343361 |
|
D. hordei | CBS 481.92 | KC343120 | KC344088 | KC343604 | KC343846 | KC343362 |
|
D. howardiae | BRIP 59697aT | OM918695 | OM960622 | – | OM960604 | – |
|
D. hsinchuensis | NTUPPMCC 18-153-1T | MZ268409 | MZ268430 | MZ268493 | MZ268472 | MZ268451 |
|
D. huangshanensis | CNUCC 201903T | MN219730 | MN227011 | MN224558 | MN224678 | – |
|
D. hubeiensis | JZB 320123T | MK335809 | MK500148 | – | MK523570 | MK500235 |
|
D. humulicola | CT2018-1T | MN152927 | – | MN180213 | MN180207 | MN180204 |
|
D. hunanensis | HNZZ 023T | MZ509550 | MZ504713 | MZ504691 | MZ504702 | MZ504680 |
|
D. hungariae | CBS 143353T | MG281126 | MG281299 | MG281474 | MG281647 | MG281823 |
|
D. iberica | CECT 21218T | ON159902 | ON364049 | ON398819 | ON398841 | ON364028 |
|
D. ilicicola | FPH 2015502T | MH171064 | MH171074 | MH171084 | – | – |
|
D. impulsa | CBS 114434 | KC343121 | KC344089 | KC343605 | KC343847 | KC343363 |
|
D. incompleta | CGMCC 3.18288T | KX986794 | KX999226 | KX999265 | KX999186 | KX999289 |
|
D. inconspicua | CBS 133813T | KC343123 | KC344091 | KC343607 | KC343849 | KC343365 |
|
D. infecunda | CBS 133812T | KC343126 | KC344094 | KC343610 | KC343852 | KC343368 |
|
D. infertilis | CBS 230.52T | KC343052 | KC344020 | KC343536 | KC343778 | KC343294 |
|
D. irregularis | CGMCC 3.20092T | MT385951 | MT424706 | – | MT424686 | MT424721 |
|
D. isoberliniae | CBS 137981T | KJ869133 | KJ869245 | – | – | – |
|
STMA18291 | OR348654 | OR468822 | OR468802 | OR468812 | OR468832 | Present study | |
STMA18245 | OR348653 | OR468823 | OR468803 | OR468813 | OR468833 | Present study | |
D. italiana | MFLUCC 18-0090T | MH846237 | MH853688 | – | MH853686 | MH853690 |
|
D. jinxiu | CGMCC3.20269T | MW477881 | MW480877 | MW480865 | MW480873 | MW480869 |
|
D. juglandia | CBS 121004T | KC343134 | KC344102 | KC343618 | KC343860 | KC343376 |
|
D. juglandicola | CFCC 51134T | MW477881 | KX024634 | – | KX024628 | KX024616 |
|
D. kadsurae | CFCC 52586T | MH121521 | MH121600 | MH121479 | MH121563 | MH121439 |
|
D. kochmanii | BRIP 54033T | JF431295 | – | – | JN645809 | – |
|
D. kongii | BRIP 54031T | JF431301 | KJ197272 | – | JN645797 | – |
|
D. krabiensis | MFLUCC 17-2481T | MN047101 | MN431495 | – | MN433215 |
|
|
D. lenispora | CGMCC 3.20101T | MT385952 | MT424707 | MW022493 | MT424687 | MW022472 |
|
D. leptostromiformis | CBS 558.93 | KC343244 | KC344212 | KC343728 | KC343970 | KC343486 |
|
D. leucospermi | CBS 111980T | JN712460 | KY435673 | KY435653 | KY435632 | KY435663 |
|
D. limonicola | CBS 142549T | MF418422 | MF418582 | MF418342 | MF418501 | MF418256 |
|
D. liquidambaris | SCHM 3621T | AY601919 | – | – | – | – |
|
D. litchicola | BRIP 54900T | JX862533 | KF170925 | – | JX862539 | – |
|
D. litchii | SAUCC 194.22T | MT822550 | MT855747 | MT855519 | MT855863 | MT855635 |
|
D. lithocarpi | CGMCC 3.15175T | KC153104 | KF576311 | – | KC153095 | – |
|
D. litoricola | MFLUCC 16-1195T | MF190139 | – | – | – | – | Senanayake et al. (2017) |
D. longicolla | FAU 599T | KJ590728 | KJ610883 | KJ659188 | KJ590767 | KJ612124 |
|
D. longispora | CBS 194.36T | KC343135 | KC344103 | KC343619 | KC343861 | KC343377 |
|
D. lonicerae | MFLUCC 17-0963T | KY964190 | KY964073 | – | KY964146 | KY964116 |
|
D. lovelaceae | BRIP 60163aT | OM918696 | OM960623 | – | OM960605 | – |
|
D. lusitanicae | CBS 123212T | KC343136 | KC344104 | KC343620 | KC343862 | KC343378 |
|
D. lutescens | SAUCC 194.36T | MT822564 | MT855761 | MT855533 | MT855877 | MT855647 |
|
D. macadamiae | BRIP 66526T | MN708230 | MN696539 | – | MN696528 | – |
|
D. machili | SAUCC 194.111T | MT822639 | MT855836 | MT855606 | MT855951 | MT855718 |
|
D. macintoshii | BRIP 55064aT | KJ197289 | KJ197269 | – | KJ197251 | – |
|
D. malorum | CBS142383T | KY435638 | KY435668 | KY435648 | KY435627 | KY435658 |
|
D. manihotia | CBS 505.76 | KC343138 | KC344106 | KC343622 | KC343864 | KC343380 |
|
D. marina | MFLU 17-2622T | MN047102 | – | – | – | – |
|
D. maritima | DAOMC 250563T | KU552025 | KU574615 | – | KU552023 | – |
|
D. masirevicii | BRIP 57892aT | KJ197277 | KJ197257 | – | KJ197239 | – |
|
D. mayteni | CBS 133185T | KC343139 | KC344107 | KC343623 | KC343865 | KC343381 |
|
D. maytenicola | CBS 136441T | KF777157 | KF777250 | – | – | – |
|
D. mclennaniae | BRIP 60072aT | OM918697 | OM960624 | – | OM960606 | – |
|
D. mediterranea | DAL-34 | MT007489 | MT006686 | MT007095 | MT006989 | MT006761 |
|
D. megalospora | CBS 143.27 | KC343140 | KC344108 | KC343624 | KC343866 | KC343382 |
|
D. melastomatis | SAUCC 194.55T | MT822583 | MT855780 | MT855551 | MT855896 | MT855664 |
|
D. meliae | CFCC 53089T | MK432657 | MK578057 | ON081662 | ON081654 | – |
|
D. melitensis | CBS 142551T | MF418424 | MF418584 | MF418344 | MF418503 | MF418258 |
|
D. melonis | CBS 507.78T | KC343142 | KC344110 | KC343626 | KC343868 | KC343384 |
|
D. micheliae | SCHM 3603 | AY620820 | – | – | – | – |
|
D. middletonii | BRIP 54884eT | KJ197286 | KJ197266 | – | KJ197248 | – |
|
D. millettiae | GUCC 9167T | MK398674 | MK502089 | – | MK480609 | MK502086 |
|
D. minima | CGMCC 3.20097T | MT385953 | MT424708 | MW022496 | MT424688 | MT424722 |
|
D. minusculata | CGMCC 3.20098T | MT385957 | MT424712 | MW022499 | MT424692 | MW022475 |
|
D. miriciae | BRIP 54736jT | KJ197283 | KJ197263 | – | KJ197245 | – |
|
D. monetii | MF-Ha18-049T | MW008494 | MW008505 | MZ671965 | MW008516 | MZ671939 |
|
D. moorei | BRIP 61500bT | OR019755 | OR039652 | – | OR039645 | – |
|
D. moriniae | BRIP 60190aT | OM918698 | OM960625 | – | OM960607 | – |
|
D. multigutullata | ICMP 20656T | KJ490633 | KJ490454 | KJ490575 | KJ490512 | – |
|
D. musigena | CBS 129519T | KC343143 | KC344111 | KC343627 | KC343869 | KC343385 |
|
D. myracrodruonis | URM 7972T | MK205289 | MK205291 | – | MK213408 | MK205290 |
|
D. neatei | BRIP 60289aT | OR019756 | OR039653 | – | OR039646 | – |
|
D. nebulae | PMM 1681T | KY511337 | KY511369 | – | MH708552 | – |
|
D. neilliae | CBS 144.27T | KC343144 | KC344112 | KC343628 | KC343870 | KC343386 |
|
D. neoarctii | CBS 109490 | KC343145 | KC344113 | KC343629 | KC343871 | KC343387 |
|
D. neoraonikayaporum | MFLUCC 14-1136T | KU712449 | KU743988 | – | KU749369 | KU749356 |
|
D. nigra | JZB 320170T | MN653009 | MN887113 | – | MN892277 | – |
|
D. nobilis | CBS 587.79 | KC343153 | KC344121 | KC343637 | KC343879 | KC343395 |
|
D. nomurai | CBS 157.29 | KC343154 | KC344122 | KC343638 | KC343880 | KC343396 |
|
D. norfolkensis | BRIP 59718aT | OM918699 | OM960626 | – | OM960608 | – |
|
D. nothofagi | BRIP 54801T | JX862530 | KF170922 | – | JX862536 | – |
|
D. novem | CBS 127271T | KC343157 | KC344125 | KC343641 | KC343883 | KC343399 |
|
D. novem | CBS 117165 | DQ286285 | – | – | DQ286259 | – |
|
D. obtusifoliae | CBS 143449T | MG386072 | – | MG386137 | – | – |
|
D. ocoteae | CBS 141330T | KX228293 | KX228388 | – | – | – |
|
D. oculi | HHUF 30565T | LC373515 | LC373519 | – | LC373517 | – |
|
D. oncostoma | CBS 589.78 | KC343162 | KC344130 | KC343646 | KC343888 | KC343404 |
|
D. oraccinii | LC 3166T | KP267863 | KP293443 | KP293517 | KP267937 | – |
|
D. orixae | HKAS 121465T | OK283041 | OK432278 | OK484486 | OK432279 | OK484485 |
|
D. osmanthi | GUCC 9165T | MK398675 | MK502090 | – | MK480610 | MK502087 |
|
D. ovalispora | ICMP 20659T | KJ490628 | KJ490449 | KJ490570 | KJ490507 | – |
|
D. ovoidea | CGMCC 3.17092T | KF576264 | KF576288 | – | KF576239 | KF576222 |
|
D. oxe | CBS 133186T | KC343164 | KC344132 | KC343648 | KC343890 | KC343406 |
|
D. pachirae | COAD 2074T | MG559537 | MG559541 | – | MG559539 | MG559535 |
|
D. padi var. padi | CBS 114200 | KC343169 | KC344137 | KC343653 | KC343895 | KC343411 |
|
D. padina | CFCC 52590T | MH121525 | MH121604 | MH121483 | MH121567 | MH121443 |
|
D. pandanicola | MFLUCC 17-0607T | MG646974 | MG646930 | – | – | – |
|
D. paranensis | CBS 133184 | KC343171 | KC344139 | KC343655 | KC343897 | KC343413 |
|
D. parapterocarpi | CBS 137986T | KJ869138 | KJ869248 | – | – | – |
|
D. parva | PSCG 034T | MK626919 | MK691248 | MK726210 | MK654858 | – |
|
D. pascoei | BRIP 54847T | JX862532 | KF170924 | – | JX862538 | – |
|
D. passiflorae | CBS 132527T | JX069860 | KY435674 | KY435654 | KY435633 | KY435664 |
|
D. passifloricola | CBS 141329T | KX228292 | KX228387 | KX228367 | – | – |
|
D. patagonica | CBS 145291T | MN509717 | MN509728 | – | MN509739 | MN974279 |
|
D. penetriteum | LC 3353 | KP714505 | KP714529 | KP714493 | KP714517 | – |
|
D. perjuncta | CBS 109745T | KC343172 | KC344140 | KC343656 | KC343898 | KC343414 |
|
D. perniciosa | CBS 124030 | KC343149 | KC344117 | KC343633 | KC343875 | KC343391 |
|
D. perseae | CBS 151.73 | KC343173 | KC344141 | KC343657 | KC343899 | KC343415 |
|
D. pescicola | MFLUCC 16-0105T | KU557555 | KU557579 | – | KU557623 | KU557603 |
|
D. phaseolorum | CBS 113425 | KC343174 | KC344142 | KC343658 | KC343900 | KC343416 |
|
D. phillipsii | CAA 817T | MK792305 | MN000351 | MK871445 | MK828076 | MK883831 |
|
D. phragmitis | CBS 138897T | KP004445 | KP004507 | KP004503 | – | – |
|
D. phyllanthicola | SCHM 3680T | AY620819 | – | – | – | – |
|
D. platzii | BRIP 60353aT | OM918700 | OM960627 | – | OM960609 | – |
|
D. podocarpi-macrophylli | CGMCC 3.18281T | KX986774 | KX999207 | KX999246 | KX999167 | KX999278 |
|
D. poincianellae | URM 7932T | MH989509 | MH989537 | MH989539 | MH989538 | MH989540 |
|
D. pometiae | SAUCC 194.72T | MT822600 | MT855797 | MT855568 | MT855912 | MT855679 |
|
D. portugallica | CBS 144228T | MH063905 | MH063917 | MH063899 | MH063911 | MH063893 |
|
D. pseudoanacardii | CBS 148909T | OR348655 | OR468821 | OR468801 | OR468811 | OR468831 | Present study |
STMA 18247 | OR348656 | OR468820 | OR468800 | OR468810 | OR468830 | Present study | |
STMA 18292 | OR348657 | OR468819 | OR468799 | OR468809 | OR468829 | Present study | |
D. pseudoalnea | CFCC 54190T | MZ727037 | MZ753487 | MZ781302 | MZ816343 | MZ753468 |
|
D. pseudobiguttulata | ICMP 20657T | KJ490582 | KJ490403 | KJ490524 | KJ490461 | – |
|
D. pseudoinconspicua | URM 7874T | MH122538 | MH122524 | MH122517 | MH122533 | MH122528 |
|
D. pseudomangiferae | CBS 101339T | KC343181 | KC344149 | KC343665 | KC343907 | KC343423 |
|
D. pseudooculi | HHUF 30617T | LC373515 | LC373519 | – | LC373517 | – |
|
D. pseudophoenicicola | CBS 462.69T | KC343184 | KC344152 | KC343668 | KC343910 | KC343426 |
|
D. pseudotsugae | MFLU 15-3228T | KY964225 | KY964108 | – | KY964181 | KY964138 |
|
D. psoraleae | CBS 136412T | KF777158 | KF777251 | – | KF777245 | – |
|
D. psoraleae-pinnatae | CBS 136413T | KF777159 | KF777252 | – | – | – |
|
D. pterocarpi | MFLUCC 10-0571 | JQ619899 | JX275460 | – | JX275416 | JX197451 |
|
D. pterocarpicola | MFLUCC 10-0580a | JQ619887 | JX275441 | – | JX275403 | JX197433 |
|
D. pulla | CBS 338.89T | KC343152 | KC344120 | KC343636 | KC343878 | KC343394 |
|
D. pungensis | SAUCC 194.112T | MT822640 | MT855837 | MT855607 | MT855952 | MT855719 |
|
D. pustulata | CBS 109742 | KC343185 | KC344153 | KC343669 | KC343911 | KC343427 |
|
D. pyracanthae | CBS142384T | KY435635 | KY435666 | KY435645 | KY435625 | KY435656 |
|
D. quercicola | CSUFTCC 104T | ON076567 | – | ON081667 | ON081659 | ON081670 |
|
D. racemosae | CBS 143770T | MG600223 | MG600227 | MG600221 | MG600225 | MG600219 |
|
D. raonikayaporum | CBS 133182T | KC343188 | KC344156 | KC343672 | KC343914 | KC343430 |
|
D. rauvolfiae | CBS 148912T | OR348658 | OR468818 | OR468798 | OR468808 | OR468828 | Present study |
D. ravennica | MFLUCC 15–0479T | KU900335 | KX432254 | – | KX365197 | – |
|
D. rhodomyrti | CFCC 53101T | MK432643 | MK578046 | MK442990 | MK578119 | MK442965 |
|
D. rhoina | CBS 146.27 | KC343189 | KC344157 | KC343673 | KC343915 | KC343431 |
|
D. rizhaoensis | CFCC 57562T | OP955930 | OP959773 | OP959785 | OP959767 | OP959782 |
|
D. rosae | MFLUCC 17-2658T | MG828894 | MG843878 | – | – | MG829273 |
|
D. rosicola | MFLU 17-0646T | MG828895 | MG843877 | – | MG829270 | MG829274 |
|
D. rosiphthora | COAD 2913T | MT311196 | – | – | MT313692 | MT313690 |
|
D. rossmaniae | CAA 762T | MK792290 | MK837914 | MK871432 | MK828063 | MK883822 |
|
D. rostrata | CFCC 50062T | KP208847 | KP208855 | KP208851 | KP208853 | KP208849 |
|
D. rudis | CBS 113201 | KC343234 | KC344202 | KC343718 | KC343960 | KC343476 |
|
D. rumicicola | MFLUCC 18-0739T | MH84623 | MK049555 | – | MK049554 | – |
|
D. saccarata | CBS 116311T | KC343190 | KC344158 | KC343674 | KC343916 | KC343432 |
|
D. sackstonii | BRIP 54669bT | KJ197287 | KJ197267 | – | KJ197249 | – |
|
D. salicicola | BRIP 54825T | JX862531 | KF170923 | – | JX862537 | – |
|
D. salinicola | MFLU 18-0553T | MN047098 | – | – | MN077073 | – |
|
D. samaneae | SDBR-CMU470T | OQ600197 | OQ678277 | OQ646880 | OQ603500 | OQ646884 |
|
D. sambuci | CFCC 51986 | KY852495 | KY852511 | KY852503 | KY852507 | KY852499 |
|
D. sapindicola | CFCC 55344T | MW881507 | MW898937 | MW898940 | MW898934 | MW898943 |
|
D. schimae | CFCC 53103T | MK432640 | MK578043 | MK442987 | MK578116 | MK442962 |
|
D. schini | CBS 133181T | KC343191 | KC344159 | KC343675 | KC343917 | KC343433 |
|
D. schisandrae | CFCC 51988T | KY852497 | KY852513 | KY852505 | KY852509 | KY852501 | Yang et al. (2018) |
D. schoeni | MFLU 15-1279T | KY964226 | KY964109 | – | KY964182 | KY964139 |
|
D. sclerotioides | CBS 296.67T | KC343193 | KC344161 | KC343677 | KC343919 | KC343435 |
|
D. scobina | CBS 251.38 | KC343195 | KC344163 | KC343679 | KC343921 | KC343437 |
|
D. searlei | BRIP 66528T | MN708231 | MN696540 | – | – | – |
|
D. sennae | CFCC 51636T | KY203724 | KY228891 | – | KY228885 | KY228875 |
|
D. sennicola | CFCC 51634T | KY203722 | KY228889 | – | KY228883 | KY228873 |
|
D. serafiniae | BRIP 55665aT | KJ197274 | KJ197254 | – | KJ197236 | – |
|
D. shaanxiensis | CFCC 53106 | MK432654 | – | MK443001 | MK578130 | MK442976 |
|
D. shawiae | BRIP 64534aT | OM918701 | OM960628 | – | OM960610 | – |
|
D. shennongjiaensis | CNUCC201905T | MN216229 | MN227012 | MN224559 | MN224672 | MN224551 |
|
D. siamensis | MFLUCC 10-0573a | JQ619879 | JX275429 | – | JX275393 | – |
|
D. silvicola | CFCC 54191T | MZ727041 | MZ753491 | MZ753481 | MZ816347 | MZ753472 |
|
D. sinensis | CGMCC 3.19521T | MK637451 | MK660447 | – | MK660449 | – |
|
D. smilacicola | CFCC 54582T | OP955933 | OP959776 | OP959788 | OP959770 | OP959779 |
|
D. sojae | CBS 139282T | KJ590719 | KJ610875 | KJ659208 | KJ590762 | KJ612116 |
|
D. spartinicola | CBS 140003T | KR611879 | KR857695 | KR857696 | – | – |
|
D. spinosa | PSCG 383T | MK626849 | MK691234 | MK726156 | MK654811 | MK691129 |
|
D. sterilis | CBS 136969T | KJ160579 | KJ160528 | MF418350 | KJ160611 | KJ160548 |
|
D. stewartii | CBS 193.36 | FJ889448 | – | – | GQ250324 | – |
|
D. stictica | CBS 370.54 | KC343212 | KC344180 | KC343696 | KC343938 | KC343454 |
|
D. subclavata | ICMP 20663T | KJ490630 | KJ490451 | KJ490572 | KJ490509 | – |
|
D. subcylindrospora | KUMCC 17-0151T | MG746629 | MG746631 | – | MG746630 | – |
|
D. subellipicola | KUMCC 17-0153T | MG746632 | MG746634 | – | MG746633 | – |
|
D. subordinaria | CBS 101711 | KC343213 | KC344181 | KC343697 | KC343939 | KC343455 |
|
D. taoicola | MFLUCC 16-0117T | KU557567 | KU557591 | – | KU557635 | – |
|
D. tarchonanthi | CBS 146073T | MT223794 | MT223733 | MT223759 | – | – |
|
D. tecomae | CBS 100547 | KC343215 | KC344183 | KC343699 | KC343941 | KC343457 |
|
D. tectonae | MFLUCC 12-0777T | KU712430 | KU743977 | – | KU749359 | KU749345 |
|
D. tectonendophytica | MFLUCC 13-0471T | KU712439 | KU743986 | – | KU749367 | KU749354 |
|
D. tectonigena | MFLUCC 12-0767T | KU712429 | KU743976 | – | KU749371 | KU749358 |
|
D. terebinthifolii | CBS 133180T | KC343216 | KC344184 | KC343700 | KC343942 | KC343458 |
|
D. thunbergiae | MFLUCC 10-0756a | JQ619893 | JX275449 | – | JX275409 | JX197440 |
|
D. thunbergiicola | MFLUCC 12-0033T | KP715097 | – | – | KP715098 | – |
|
D. tibetensis | CFCC 51999T | MF279843 | MF279873 | MF279828 | MF279858 | MF279888 |
|
D. torilicola | MFLUCC 17-1051T | KY964212 | KY964096 | – | KY964168 | KY964127 |
|
D. toxica | CBS 534.93T | KC343220 | KC344188 | KC343704 | KC343946 | KC343462 |
|
D. toxicodendri | FFPRI 420987 | LC275192 | LC275224 | LC275216 | LC275216 | LC275200 |
|
D. trevorrowii | BRIP 70737aT | OM918703 | OM960630 | – | OM960612 | – |
|
D. tulliensis | BRIP 62248a | KR936130 | KR936132 | – | KR936133 | – |
|
D. tuyouyouiae | BRIP 75017aT | OQ917074 | OQ889559 | – | OQ889558 | – |
|
D. ueckeri | FAU 656 | KJ590726 | KJ610881 | KJ659215 | KJ590747 | KJ612122 |
|
D. ukurunduensis | CFCC 52592T | MH121527 | – | MH121485 | MH121569 | MH121445 |
|
D. undulata | CGMCC 3.18293T | KX986798 | KX999230 | KX999269 | KX999190 | – |
|
D. unshiuensis | CGMCC3.17569T | KJ490587 | KJ490408 | KJ490529 | KJ490466 | – |
|
D. vaccinii | CBS 160.32T | AF317578 | KC344196 | KC343712 | GQ250326 | KC343470 |
|
D. vacuae | CAA 830T | MK792309 | MK837931 | MK871449 | MK828080 | MK883834 |
|
D. vangoghii | MF-Ha18-046T | MW008492 | MW008503 | MZ671963 | MW008514 | MZ671937 |
|
D. vangueriae | CBS 137985T | KJ869137 | KJ869247 | – | – | – |
|
D. vawdreyi | BRIP 57887a | KR936126 | KR936128 | – | KR936129 | – |
|
D. velutina | CGMCC 3.18286T | KX986790 | KX999223 | KX999261 | KX999182 | – |
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D. verniciicola | CFCC 53109T | MK573944 | MK574639 | MK574599 | MK574619 | MK574583 |
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D. vexans | CBS 127.14 | KC343229 | KC344197 | KC343713 | KC343955 | KC343471 |
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D. viciae | JZB 320179T | OP626092 | OP627281 | OP627279 | OP627280 | – |
|
D. viniferae | JZB 320071T | MK341551 | MK500112 | – | MK500107 | MK500119 |
|
D. virgiliae | CBS 138788T | KP247573 | KP247582 | – | – | – |
|
D. vitimegaspora | STE-U 2675 | AF230749 | – | – | – | – |
|
D. vochysiae | LGMF 1583T | MG976391 | MK007527 | MK033323 | MK007526 | MK007528 |
|
D. woolworthii | CBS 148.27 | KC343245 | KC344213 | KC343729 | KC343971 | KC343487 |
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D. xishuangbanica | CGMCC 3.18282T | KX986783 | KX999216 | KX999255 | KX999175 | – |
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D. xunwuensis | CFCC 53085T | MK432663 | MK578063 | MK443008 | MK578137 | MK442983 |
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D. yunnanensis | CGMCC 3.18289T | KX986796 | KX999228 | KX999267 | KX999188 | KX999290 |
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D. zaobaisu | PSCG 031T | MK626922 | MK691245 | MK726207 | MK654855 | – |
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D. zaofenghuang | CGMCC3.20271T | MW477883 | MW480875 | – | MW480871 | MW480867 |
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Diaporthella corylina | CBS 121124 | KC343004 | KC343972 | KC343488 | KC343730 | KC343246 |
|
To further put the sampled strains and obtained sequences into their taxonomic context, a molecular phylogenetic inference using the taxon selection and program settings presented by
Maximum Likelihood phylogram (lLn = -56509.790498) obtained from the combined ITS, cal, his3, tef1 and tub2 sequences of our strain and reference strains of Diaporthe spp. Diaporthella corylina CBS 121124 was used as outgroup. Bootstrap support values ≥70 are indicated along branches. Branch lengths are proportional to distance. Figure legend refers to nucleotide substitutions per site.
The lengths of the fragments of the five loci used in the combined dataset were 458 bp (ITS), 331 bp (cal), 296 bp (his3), 157 bp (tef1) and 510 bp (tub2). The length of the final alignment was 1752 bp. The phylogenetic tree obtained from the RAxML analysis of the combined dataset is shown in Fig.
The first restricted clade analysis featured 561 bp (ITS), 453 bp (cal), 373 bp (his3), 434 bp (tef1), 820 bp (tub2) for each respective locus, spanning in total 121 taxa and 2641 sites in total (Fig.
Maximum-Likelihood phylogram (lLn = -13511.2844) obtained from the combined ITS, cal, his3, tef1 and tub2 sequences of our strain and related Diaporthe spp. Diaporthe amygdali CBS 126679T and D. eres CBS 138594T were used as outgroup. Bootstrap support values ≥ 70/Bayesian posterior probability scores ≥ 0.95 are indicated along branches. Branch lengths are proportional to distance. Novelties are indicated in bold. Type material of the different species is indicated with T. Figure legend refers to nucleotide substitutions per site.
Maximum Likelihood phylogram obtained (lLn = -10678.2613) from the combined ITS, cal, his3, tef1 and tub2 sequences of our strain and related Diaporthe spp. Diaporthe amygdali CBS 126679T and D. eres CBS 138594T were used as outgroup. Bootstrap support values ≥ 70/Bayesian posterior probability scores ≥ 0.95 are indicated along branches. Branch lengths are proportional to distance. Novelties and emended taxa are indicated in bold. Type material of the different species is indicated with T. Figure legend refers to nucleotide substitutions per site.
Conidiomata pycnidial in culture on PNA, globose or irregular, dark brown to black, solitary or in groups, embedded, erumpent, 240–500 μm diam, white to cream or yellow conidial drops exuded from ostioles; conidiomatal wall pale olivaceous green to brown, composed of 1–3 layers, textura angularis. Conidiophores cylindrical to subcylindrical, base pale olivaceous to pale yellow, apex hyaline to subhyaline, straight, densely aggregated, smooth-walled, aseptate or 1(–2) septate, (6–)12–22.5 × 1–3 μm. Conidiogenous cells phialidic, cylindrical, tapering towards the apex, hyaline, mostly terminal, rarely lateral, (7–)8–15.5 × 1–3 μm. Paraphyses not observed. Alpha conidia ovoid to ellipsoidal, hyaline, apex acutely rounded, base acutate, biguttulate, aseptate, (3–)4–6.5 × 1.5–2.5 μm. Beta conidia filiform, curved, tapering towards apex, hyaline, not guttulate, aseptate, 18–32.5 × 1–2 μm. Gamma conidia not observed.
Colonies on PDA covering the surface of the Petri dish in 2 weeks, grayed white (156B–C) with a grayed orange (174B) ring and grayed orange (163A) margins, velvety to cottony, flat to raised in some zones, margins filamentous to fimbriate; reverse center gray brown (199A) with a yellow orange or grayed orange (167A) zones. Colonies on MEA covering the surface of the Petri dish in 2 weeks, yellow green (153B) with white to grayed yellow (160C) margins, velvety to cottony, flat to raised in some zones, margins filamentous to fimbriate; reverse black (202A) with gray brown (199A) mycelia and yellow green (153B) margins. Colonies on OA covering the surface of the Petri dish in 2 weeks, grayed green (198B) to white mycelium with a yellow green (151B) ring, cottony, flat to raised in some zones, margins filamentous; reverse yellow green (153B) with grayed yellow (161C) margins.
Cameroon, Kala Mountain, from Bridelia ndellensis, 03 Jan. 2019, S.C.N. Wouamba (holotype: CBS H-24921, culture ex-type CBS 148911 = STMA 18286).
Diaporthe brideliae is the only report in Bridelia (Phyllanthaceae) from Cameroon. The phylogenetically most related species are D. chinensis, D. siamensis and D. yunnanensis. Diaporthe chinensis can be distinguished by the absence of beta conidia, which are produced by the other three species. Diaporthe siamensis is the only species mentioned here that produces gamma conidia (
Conidiomata pycnidial in culture on PNA, globose or irregular, dark brown to black, solitary or in groups, embedded, erumpent, 220–550 μm diam, white to cream conidial drops exuded from ostioles; conidiomatal wall pale olivaceous green to olivaceous brown, composed of 1–3 layers, textura angularis. Conidiophores cylindrical to subcylindrical, tapering towards apex, base subhyaline to pale yellow or pale olivaceous, apex hyaline to subhyaline, straight, densely aggregated, smooth-walled, 1(–3) septate, 12.5–28 × 1–3.5 μm. Conidiogenous cells phialidic, cylindrical to subcylindrical, tapering towards apex, hyaline, terminal, 6–11(–12) × 1.5–3 μm. Paraphyses not observed. Alpha conidia ellipsoidal, hyaline, apex rounded, base rounded to slightly acutate, biguttulate, aseptate, 4.5–6 × (1–)1.5–2.5 μm. Beta and gamma conidia not observed.
Colonies on PDA covering the surface of the Petri dish in 2 weeks, grayed yellow (161C–D) with transparent margins and white mycelia, cottony to slightly feathery, flat to raised in some zones, lobate, margins filamentous to fimbriate; reverse grayed yellow (161A–D) with transparent margins. Colonies on MEA covering the surface of the Petri dish in 2 weeks, grayed white (156A–B) with transparent margins and yellow white (158D) mycelia, or grayed-orange (165A) with white mycelia and yellow green (153D) margins, cottony to slightly feathery, flat to raised in some zones, margins filamentous to fimbriate; reverse grayed yellow (161A–D) with transparent margins or grayed orange (165A–B) with yellow green (153D) margins. Colonies on OA covering the surface of the Petri dish in 2 weeks, white with grayed white (156C) patches and grayed green (197D) or gray brown (199D) margins, or yellow green (152B) with brown (200A) patches and yellow-white (158A) mycelia, cottony to slightly feathery, flat to raised in some zones, margins filamentous to fimbriate; reverse grayed green (195A) with yellow green centre (152C) or fully yellow green (152C–D).
Cameroon, Kala Mountain, from Atractogyne gabonii, 02 Jan. 2019, E. G. M. Anoumedem (holotype CBS H-24922; culture ex-type CBS 148913 = STMA 18288); from Trema guineensis,11 Apr. 2019, E. G. M. Anoumedem (STMA 18289); from Trema guineensis, 11 Apr. 2019, E. G. M. Anoumedem (STMA 18290).
Different strains belonging to this new species formed a well-supported independent clade (100 bs / 1 pp) apart from all surveyed Diaporthe spp. This species was isolated from Trema (Cannabaceae) and Atractogyne (Rubiaceae). To the best of our knowledge, this is the first Diaporthe species to be isolated from Atractogyne. Diaporthe pseudoanacardii, which is introduced further below, has also been isolated from Trema collected in Cameroon. However, both species can easily be distinguished by the length of their conidiogenous cells (12.5–28 μm in D. cameroonensis vs (7.5–)10–45 μm in D. pseudoanacardii) and conidia (4.5–6 μm in D. cameroonensis vs (5–)6–8(–9) μm in D. pseudoanacardii).
Conidiomata pycnidial in culture on PNA, globose or irregular, dark brown to black, solitary or in groups, embedded, erumpent, 190–700(–820) μm diam, white to yellow or cream conidial drops and cirrus exuded from ostioles; conidiomatal wall pale olivaceous to olivaceous brown, composed of 1–2 layers, textura angularis. Conidiophores cylindrical to subcylindrical, base subhyaline to pale yellow or pale olivaceous, apex hyaline to subhyaline, straight, densely aggregated, smooth-walled, 1–2(–3) septate, rarely aseptate, (7.5–)10–45 × 1–3.5(–4) μm. Conidiogenous cells phialidic, cylindrical, tapering towards apex, hyaline to subhyaline, terminal or lateral, 7–28 × 1–3.5(–4) μm. Paraphyses not observed. Alpha conidia ovoid to ellipsoidal, hyaline, apex acutely rounded, base acutate, granular to guttulate, aseptate, (5–)6–8(–9) × 1.5–3 μm. Beta and gamma conidia not observed.
Colonies on PDA covering the surface of the Petri dish in 2 weeks, white to grayed yellow (162C–D) or grayed white (156A–B), sometimes with transparent margins and white, yellow green (153B–C) and grayed green (195A–B) zones, granulous to cottony or slightly feathery, flat to raised in some zones, margins filamentous to fimbriate; reverse grayed yellow (161C–D or 162D) and brown (200A) or black (202A–B) center, sometimes with transparent margins. Colonies on MEA reaching 59–85 in 2 weeks, white or grayed yellow (161B–C) with normally a white ring, sometimes with grayed green zones (197A–D) and transparent margins, cottony to slightly feathery, lobate, flat to raised in some zones, margins filamentous to fimbriate; reverse grayed green (197A) to brown (200A) with grayed yellow (161B) margins, or grayed green (197A) with grayed yellow (160D) and yellow green (152B) zones and black (202A) margin, or grayed yellow (161 A–B) and transparent margins. Colonies on OA covering the surface of the Petri dish in 2 weeks, grayed green (195A–D) with white margins and yellow (4A–B) or grayed yellow (160D) center, or grayed white (156A–C) with grayed orange (163B–C) center and yellow white (158B–C) margins, cottony to slightly feathery, raised, margins filamentous to fimbriate; reverse yellow green (147B) with gray brown (199B) margins or entire gray brown (199A–B) or grayed green (195A with 198A centre).
Cameroon, Kala Mountain, from Trema guineensis, 11 Apr. 2019, E.G.M. Anoumedem (holotype CBS H-24923; culture ex-type CBS 148909 = STMA 18283); Tonga, West Region, from Pittosporum manii, 19 Jun. 2019, E.G.M. Anoumedem (STMA 18247, STMA 18292).
This species resolved in a well-supported clade (82 bs / 1 pp) together with D. anacardii, D. macadamiae, D. nebulae and D. velutina. Diaporthe pseudoanacardii can be easily distinguished from all the other species by the absence of beta conidia. All these species are reported from Africa (
Conidiomata pycnidial in culture on PNA, globose or irregular, dark brown to black, solitary or in groups, embedded, erumpent, 210–450(–530) μm diam, white to cream conidial drops exuded from ostioles; conidiomatal wall yellowish brown to olivaceous brown or brown, composed of 1–2 layers, textura angularis. Conidiophores cylindrical to subcylindrical, tapering towards apex, base subhyaline to pale yellow or pale olivaceous, apex hyaline to subhyaline, densely aggregated, smooth-walled, (0–)1–2 septate, 9–19.5 × 1.5–3.5 μm. Conidiogenous cells phialidic, cylindrical to subcylindrical, tapering towards apex, hyaline, mostly terminal, 6.5–13.5 × 1.5–3 μm. Paraphyses not observed. Alpha conidia broadly fusiform to obovoid, hyaline, apex rounded or acute, base acutate, biguttulate to multiguttulate, aseptate, 6.5–9 × 2–3 μm. Beta conidia filiform, curved, tapering towards apex, hyaline, not guttulate, aseptate, 20–36.5 × 1–2 μm. Gamma conidia less frequent, fusiform to obovoid, straight to slightly curved, rarely sinuose, acutate ends or one acutate and other round, hyaline, multiguttulate, aseptate, (8–)9–13 × 1.5–2.5 μm.
Colonies on PDA reaching 72–76 mm in 2 weeks, grayed yellow (160B–C) with white ring and transparent margins, cottony to slightly feathery, raised, lobate, margins filamentous; reverse grayed yellow (160B–C) with white ring and transparent margins. Colonies on MEA covering the surface of the Petri dish in 2 weeks, white to grayed white (156B), cottony to slightly feathery, raised, margins filamentous; reverse grayed green (197A) to gray brown (199A) with black (202A) center. Colonies on OA covering the surface of the Petri dish in 2 weeks, grayed white (156B–D), cottony to slightly feathery, raised, margins filamentous; reverse gray brown (199A).
Cameroon, Tonga, West Region, from Rauvolfia vomitoria, 19 Jun. 2019, E.G.M. Anoumedem (holotype CBS H-24924, culture ex-type CBS 148912 = STMA 18287).
Diaporthe rauvolfiae was located in an independent branch far from other species of Diaporthe (Fig.
Conidiomata pycnidial in culture on PNA, globose or irregular, dark brown to black, solitary or in groups, embedded, erumpent, 200–460 μm diam, white to cream or yellow conidial drops exuded from ostioles; conidiomatal wall yellowish brown to olivaceous brown or brown, composed of 1–6 layers, textura angularis. Conidiophores cylindrical to subcylindrical, base subhyaline to pale olivaceous, apex hyaline, densely aggregated, smooth-walled, 1–3-septate, 13–42 × 1.5–4 μm. Conidiogenous cells phialidic, cylindrical to subcylindrical, tapering towards apex, hyaline, terminal or lateral, (5.5–)6.5–14 × 1.5–3 μm. Paraphyses not observed. Alpha conidia ellipsoidal to obovoid, or fusoid-ellipsoid, hyaline, apex rounded or subobtuse, base acutate or subtruncate, biguttulate to multiguttulate, aseptate, 5.5–9(–10) × 2–3(–3.5) μm. Beta conidia less frequent, filiform, curved, tapering towards apex, hyaline, not guttulate, aseptate, 11.5–27.5 × 1–2 μm. Gamma conidia less frequent, broadly fusiform, straight to slightly curved, rarely sinuose, apex acutate or filiform, base filiform, hyaline, multiguttulate, aseptate, 10–18.5(–21) × 1.5–2.5 μm.
Colonies on PDA reaching 63–72 mm or covering the surface of the Petri dish in 2 weeks, white with a grayed yellow (160C) ring and transparent margins, lobate, cottony to slightly feathery, flat to raised in some zones or fully raised, lobate, margins filamentous to fimbriate; reverse grayed yellow (160B–D). Colonies on MEA covering the surface of the Petri dish in 2 weeks, grayed yellow (161A) with a white ring and white to transparent margins, cottony to slightly feathery, flat to raised in some zones or fully raised, margins filamentous to fimbriate; reverse grayed yellow (162A–C) with transparent margins and sometimes with gray brown (199A) center. Colonies on OA covering the surface of the Petri dish in 2 weeks, white to grayed white (156A) with grayed yellow (161A–B) margins or grayed yellow (161C) with brown (200A) dots and white center and margins, cottony to slightly feathery, raised, margins filamentous to fimbriate; reverse grayed green (197B) to/or gray brown (199C–D).
Cameroon, Tonga, West Region, from Pittosporum manii, 19 Jun. 2019, E. G. M. Anoumedem (STMA 18245); ibid. STMA 18291.
Diaporthe isoberliniae was described based on a specimen isolated from Zambia on Isoberlinia angolensis (Fabaceae) (
Diaporthe isoberliniae is related to D. pungensis. This latter species can be distinguished by the absence of gamma conidia and the production of shorter conidiophores (11–14.5 μm in D. pungensis vs 13–42 μm in D. isoberliniae) (
This study reports on the isolation and assignment of a group of fungi isolated from plant material to the genus Diaporthe. A characterization by sequencing was followed-up with a concatenation-based molecular phylogenetic inference, which afforded heterogenous sequence placements among a phylogenetic dataset featuring DNA sequence data substantially derived from type strains. Taken together with an analysis of the taxon placements in single-locus trees (data not shown), we concluded that the placement pattern among each strain was unique, which combined with the traditional morphological descriptions let us to propose the erection of four new species to accommodate the isolated strains. Secluding species description to either morphology, ecological observations (such as host occurrence or lifestyle) or molecular data alone has been shown to be problematic in Diaporthe, indicating that the commonly observed morphological features that are recorded and observed by taxonomists are not under strict evolutionary selection pressure (
We are grateful to V. Nana (National Herbarium of Cameroon) for the botanical identifications and S.C.N. Wouamba for the isolation of the strain CBS 148911.
The authors have declared that no competing interests exist.
No ethical statement was reported.
This work was financed by a personal PhD stipend from the German Academic exchange service (DAAD) to B.M.K. (programme ID- 57440921); a stipend granted by the Life-Science Foundation (LSS) located in Munich to C.L.; postdoctoral stipendium from Alexander-von-Humboldt Foundation, Germany, and financial support of the “COPFUN project” (Project-ID 490821847) funded by Deutsche Forschungsgemeinschaft (DFG) to Y.M.F. The World Academy of Sciences (TWAS) (grant 18‐178 RG/CHE/AF/AC_G‐FR 3240303654), and the Alexander von Humboldt Foundation (AvH) through the equipment subsidies (Ref 3.4 - 8151/20 002), the Research Group Linkage (grant IP-CMR-1121341) and the hub project CECANOPROF (3.4-CMR-Hub).
Christopher Lambert: Methodology, Writing – original draft. Lena Schweizer: Methodology. Blondelle Matio Kemkuignou: Methodology. Elodie Gisele M. Anoumedem: Methodology. Simeon F. Kouam: Funding acquisition. Yasmina Marin-Felix: Methodology, Supervision, Writing – original draft and revision.
Christopher Lambert https://orcid.org/0000-0002-1899-8214
Lena Schweizer https://orcid.org/0000-0003-1296-5486
Simeon F. Kouam https://orcid.org/0000-0003-0191-0527
Yasmina Marin-Felix https://orcid.org/0000-0001-8045-4798
All of the data that support the findings of this study are available in the main text or Supplementary Information.
Phylogenetic study data
Data type: docx