Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Identification and Comparison of Colletotrichum Secreted Effector Candidates Reveal Two Independent Lineages Pathogenic to Soybean

Thaís Regina Boufleur
* ORCID logo ,
Nelson Sidnei Massola Júnior
,
Ísis Tikami
,
Serenella Ana Sukno
,
Michael Ronald Thon
,
Riccardo Baroncelli
* ORCID logo
Version 1 : Received: 18 October 2021 / Approved: 20 October 2021 / Online: 20 October 2021 (10:11:06 CEST)

A peer-reviewed article of this Preprint also exists.

Boufleur, T.R.; Massola Júnior, N.S.; Tikami, Í.; Sukno, S.A.; Thon, M.R.; Baroncelli, R. Identification and Comparison of Colletotrichum Secreted Effector Candidates Reveal Two Independent Lineages Pathogenic to Soybean. Pathogens 2021, 10, 1520. Boufleur, T.R.; Massola Júnior, N.S.; Tikami, Í.; Sukno, S.A.; Thon, M.R.; Baroncelli, R. Identification and Comparison of Colletotrichum Secreted Effector Candidates Reveal Two Independent Lineages Pathogenic to Soybean. Pathogens 2021, 10, 1520.

Abstract

Colletotrichum is one of the most important plant pathogenic genera of fungi due to its scientific and economic impact. Colletotrichum spp. can infect a wide range of hosts, causing losses in crops of major importance worldwide, such as soybean. In the past, soybean anthracnose was mainly caused by C. truncatum, but during the last decade, other species have been identified at an increasing rate, becoming one of the most important limiting factors to soybean production in several regions. To gain a better understanding of the evolutionary origin of soybean anthracnose, we compared the repertoire of effector candidates of four Colletotrichum species pathogenic to soybean and eight pathogens of other hosts. Our results show that the four species infecting soybean belong to two lineages and do not share any of the lineage specific effector candidates identified. These results strongly suggest that two Colletotrichum lineages have acquired the capability to infect soybean independently. This study also provides, for each lineage, a set of candidate effectors encoding genes that may have important roles in pathogenicity towards soybean offering a new resource useful for further research on soybean anthracnose management.

Keywords

anthracnose; genome sequencing; pathogenicity factors; Colletotrichum truncatum; Colletotrichum orchidearum; Glomerella; Glycine max

Subject

Biology and Life Sciences, Plant Sciences

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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