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Updating species diversity of Colletotrichum, with a phylogenomic overview

Updating species diversity of Colletotrichum, with a phylogenomic overview The genus Colletotrichum includes important plant pathogens, endophytes, saprobes and human pathogens. Even though the polyphasic approach has facilitated Colletotrichum species identification, knowledge of the overall species diversity and host distribution is largely incomplete. To address this, we examined 952 Colletotrichum strains isolated from plants representing 322 species from 248 genera, or air and soil samples, from 87 locations in China, as well as 56 strains from Saudi Arabia, Thailand, Turkey, and the UK. Based on morphological characteristics and multi-locus phylogenetic analyses, the strains were assigned to 107 species, including 30 new species described in this paper and 18 new records for China. The currently most comprehensive backbone tree of Colletotrichum, comprising 16 species complexes (including a newly introduced C. bambusicola species complex) and 15 singleton species, is provided. Based on these analyses, 280 species with available molecular data are accepted in this genus, of which 139 have been reported in China, accounting for 49.6 % of the species. Colletotrichum siamense, C. karsti, C. fructicola, C. truncatum, C. fioriniae, and C. gloeosporioides were the most commonly detected species in China, as well as the species with the broadest host range. By contrast, 76 species were currently found to be associated with a single plant species or genus in China. To date, 33 Colletotrichum species have been exclusively reported as endophytes. Furthermore, we generated and assembled whole-genome sequences of the 30 new and a further 18 known species. The most comprehensive genome tree comprising 94 Colletotrichum species based on 1 893 single-copy orthologous genes was hence generated, with all nodes, except four, supported by 100 % bootstrap values. Collectively, this study represents the most comprehensive investigation of Colletotrichum diversity and host occurrence to date, and greatly enhances our understanding of the diversity and phylogenetic relationships in this genus.Taxonomic novelties: New species: Colletotrichum arecacearum F. Liu, Z.Y. Ma & L. Cai, Colletotrichum bicoloratum F. Liu, W.P. Wu & L. Cai, Colletotrichum bromeliacearum F. Liu & L. Cai, Colletotrichum buxi F. Liu, W.P. Wu & L. Cai, Colletotrichum chamaedoreae F. Liu, W.P. Wu & L. Cai, Colletotrichum crousii F. Liu, Z.Y. Ma & L. Cai, Colletotrichum danxiashanense F. Liu, W.P. Wu & L. Cai, Colletotrichum diversisporum F. Liu, W.P. Wu & L. Cai, Colletotrichum diversum F. Liu & L. Cai, Colletotrichum dolichoconidiophori F. Liu, W.P. Wu & L. Cai, Colletotrichum iris F. Liu & L. Cai, Colletotrichum monsterae F. Liu, W.P. Wu & L. Cai, Colletotrichum multiseptatum F. Liu, W.P. Wu & L. Cai, Colletotrichum nageiae F. Liu, W.P. Wu & L. Cai, Colletotrichum obovoides F. Liu & L. Cai, Colletotrichum parabambusicola F. Liu, W.P. Wu & L. Cai, Colletotrichum paraendophytum F. Liu, W.P. Wu & L. Cai, Colletotrichum reniforme F. Liu, Z.Y. Ma & L. Cai, Colletotrichum schimae F. Liu, W.P. Wu & L. Cai, Colletotrichum shivasii F. Liu & L. Cai, Colletotrichum sinuatum F. Liu, W.P. Wu & L. Cai, Colletotrichum subacidae F. Liu, Z.Y. Ma & L. Cai, Colletotrichum subsalicis F. Liu & L. Cai, Colletotrichum subvariabile F. Liu, W.P. Wu & L. Cai, Colletotrichum syngoniicola F. Liu, Z.Y. Ma & L. Cai, Colletotrichum telosmae F. Liu, W.P. Wu & L. Cai, Colletotrichum tibetense F. Liu & L. Cai, Colletotrichum variabile F. Liu, W.P. Wu & L. Cai, Colletotrichum zhaoqingense F. Liu & L. Cai, Colletotrichum zhejiangense F. Liu, W.P. Wu & L. Cai.Citation: Liu F, Ma ZY, Hou LW, Diao YZ, Wu WP, Damm U, Song S, Cai L (2022). Updating species diversity of Colletotrichum, with a phylogenomic overview. Studies in Mycology 101: 1–56. doi: 10.3114/sim.2022.101.01 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Studies in Mycology Pubmed Central

Updating species diversity of Colletotrichum, with a phylogenomic overview

Studies in Mycology , Volume 101 – Jan 11, 2022

Updating species diversity of Colletotrichum, with a phylogenomic overview

Studies in Mycology , Volume 101 – Jan 11, 2022

Abstract

The genus Colletotrichum includes important plant pathogens, endophytes, saprobes and human pathogens. Even though the polyphasic approach has facilitated Colletotrichum species identification, knowledge of the overall species diversity and host distribution is largely incomplete. To address this, we examined 952 Colletotrichum strains isolated from plants representing 322 species from 248 genera, or air and soil samples, from 87 locations in China, as well as 56 strains from Saudi Arabia, Thailand, Turkey, and the UK. Based on morphological characteristics and multi-locus phylogenetic analyses, the strains were assigned to 107 species, including 30 new species described in this paper and 18 new records for China. The currently most comprehensive backbone tree of Colletotrichum, comprising 16 species complexes (including a newly introduced C. bambusicola species complex) and 15 singleton species, is provided. Based on these analyses, 280 species with available molecular data are accepted in this genus, of which 139 have been reported in China, accounting for 49.6 % of the species. Colletotrichum siamense, C. karsti, C. fructicola, C. truncatum, C. fioriniae, and C. gloeosporioides were the most commonly detected species in China, as well as the species with the broadest host range. By contrast, 76 species were currently found to be associated with a single plant species or genus in China. To date, 33 Colletotrichum species have been exclusively reported as endophytes. Furthermore, we generated and assembled whole-genome sequences of the 30 new and a further 18 known species. The most comprehensive genome tree comprising 94 Colletotrichum species based on 1 893 single-copy orthologous genes was hence generated, with all nodes, except four, supported by 100 % bootstrap values. Collectively, this study represents the most comprehensive investigation of Colletotrichum diversity and host occurrence to date, and greatly enhances our understanding of the diversity and phylogenetic relationships in this genus.Taxonomic novelties: New species:
Colletotrichum arecacearum F. Liu, Z.Y. Ma & L. Cai, Colletotrichum bicoloratum F. Liu, W.P. Wu & L. Cai, Colletotrichum bromeliacearum F. Liu & L. Cai, Colletotrichum buxi F. Liu, W.P. Wu & L. Cai, Colletotrichum chamaedoreae F. Liu, W.P. Wu & L. Cai, Colletotrichum crousii F. Liu, Z.Y. Ma & L. Cai, Colletotrichum danxiashanense F. Liu, W.P. Wu & L. Cai, Colletotrichum diversisporum F. Liu, W.P. Wu & L. Cai, Colletotrichum diversum F. Liu & L. Cai, Colletotrichum dolichoconidiophori F. Liu, W.P. Wu & L. Cai, Colletotrichum iris F. Liu & L. Cai, Colletotrichum monsterae F. Liu, W.P. Wu & L. Cai, Colletotrichum multiseptatum F. Liu, W.P. Wu & L. Cai, Colletotrichum nageiae F. Liu, W.P. Wu & L. Cai, Colletotrichum obovoides F. Liu & L. Cai, Colletotrichum parabambusicola F. Liu, W.P. Wu & L. Cai, Colletotrichum paraendophytum F. Liu, W.P. Wu & L. Cai, Colletotrichum reniforme F. Liu, Z.Y. Ma & L. Cai, Colletotrichum schimae F. Liu, W.P. Wu & L. Cai, Colletotrichum shivasii F. Liu & L. Cai, Colletotrichum sinuatum F. Liu, W.P. Wu & L. Cai, Colletotrichum subacidae F. Liu, Z.Y. Ma & L. Cai, Colletotrichum subsalicis F. Liu & L. Cai, Colletotrichum subvariabile F. Liu, W.P. Wu & L. Cai, Colletotrichum syngoniicola F. Liu, Z.Y. Ma & L. Cai, Colletotrichum telosmae F. Liu, W.P. Wu & L. Cai, Colletotrichum tibetense F. Liu & L. Cai, Colletotrichum variabile F. Liu, W.P. Wu & L. Cai, Colletotrichum zhaoqingense F. Liu & L. Cai, Colletotrichum zhejiangense F. Liu, W.P. Wu & L. Cai.Citation: Liu F, Ma ZY, Hou LW, Diao YZ, Wu WP, Damm U, Song S, Cai L (2022). Updating species diversity of Colletotrichum, with a phylogenomic overview. Studies in Mycology
101: 1–56. doi: 10.3114/sim.2022.101.01

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Publisher
Pubmed Central
Copyright
© 2022 Westerdijk Fungal Biodiversity Institute
ISSN
0166-0616
eISSN
1872-9797
DOI
10.3114/sim.2022.101.01
Publisher site
See Article on Publisher Site

Abstract

The genus Colletotrichum includes important plant pathogens, endophytes, saprobes and human pathogens. Even though the polyphasic approach has facilitated Colletotrichum species identification, knowledge of the overall species diversity and host distribution is largely incomplete. To address this, we examined 952 Colletotrichum strains isolated from plants representing 322 species from 248 genera, or air and soil samples, from 87 locations in China, as well as 56 strains from Saudi Arabia, Thailand, Turkey, and the UK. Based on morphological characteristics and multi-locus phylogenetic analyses, the strains were assigned to 107 species, including 30 new species described in this paper and 18 new records for China. The currently most comprehensive backbone tree of Colletotrichum, comprising 16 species complexes (including a newly introduced C. bambusicola species complex) and 15 singleton species, is provided. Based on these analyses, 280 species with available molecular data are accepted in this genus, of which 139 have been reported in China, accounting for 49.6 % of the species. Colletotrichum siamense, C. karsti, C. fructicola, C. truncatum, C. fioriniae, and C. gloeosporioides were the most commonly detected species in China, as well as the species with the broadest host range. By contrast, 76 species were currently found to be associated with a single plant species or genus in China. To date, 33 Colletotrichum species have been exclusively reported as endophytes. Furthermore, we generated and assembled whole-genome sequences of the 30 new and a further 18 known species. The most comprehensive genome tree comprising 94 Colletotrichum species based on 1 893 single-copy orthologous genes was hence generated, with all nodes, except four, supported by 100 % bootstrap values. Collectively, this study represents the most comprehensive investigation of Colletotrichum diversity and host occurrence to date, and greatly enhances our understanding of the diversity and phylogenetic relationships in this genus.Taxonomic novelties: New species: Colletotrichum arecacearum F. Liu, Z.Y. Ma & L. Cai, Colletotrichum bicoloratum F. Liu, W.P. Wu & L. Cai, Colletotrichum bromeliacearum F. Liu & L. Cai, Colletotrichum buxi F. Liu, W.P. Wu & L. Cai, Colletotrichum chamaedoreae F. Liu, W.P. Wu & L. Cai, Colletotrichum crousii F. Liu, Z.Y. Ma & L. Cai, Colletotrichum danxiashanense F. Liu, W.P. Wu & L. Cai, Colletotrichum diversisporum F. Liu, W.P. Wu & L. Cai, Colletotrichum diversum F. Liu & L. Cai, Colletotrichum dolichoconidiophori F. Liu, W.P. Wu & L. Cai, Colletotrichum iris F. Liu & L. Cai, Colletotrichum monsterae F. Liu, W.P. Wu & L. Cai, Colletotrichum multiseptatum F. Liu, W.P. Wu & L. Cai, Colletotrichum nageiae F. Liu, W.P. Wu & L. Cai, Colletotrichum obovoides F. Liu & L. Cai, Colletotrichum parabambusicola F. Liu, W.P. Wu & L. Cai, Colletotrichum paraendophytum F. Liu, W.P. Wu & L. Cai, Colletotrichum reniforme F. Liu, Z.Y. Ma & L. Cai, Colletotrichum schimae F. Liu, W.P. Wu & L. Cai, Colletotrichum shivasii F. Liu & L. Cai, Colletotrichum sinuatum F. Liu, W.P. Wu & L. Cai, Colletotrichum subacidae F. Liu, Z.Y. Ma & L. Cai, Colletotrichum subsalicis F. Liu & L. Cai, Colletotrichum subvariabile F. Liu, W.P. Wu & L. Cai, Colletotrichum syngoniicola F. Liu, Z.Y. Ma & L. Cai, Colletotrichum telosmae F. Liu, W.P. Wu & L. Cai, Colletotrichum tibetense F. Liu & L. Cai, Colletotrichum variabile F. Liu, W.P. Wu & L. Cai, Colletotrichum zhaoqingense F. Liu & L. Cai, Colletotrichum zhejiangense F. Liu, W.P. Wu & L. Cai.Citation: Liu F, Ma ZY, Hou LW, Diao YZ, Wu WP, Damm U, Song S, Cai L (2022). Updating species diversity of Colletotrichum, with a phylogenomic overview. Studies in Mycology 101: 1–56. doi: 10.3114/sim.2022.101.01

Journal

Studies in MycologyPubmed Central

Published: Jan 11, 2022

References