The ApMat marker can resolve Colletotrichum species: a case study with Mangifera indica. Fungal Divers

Sharma, Gunjan and Kumar, Navinder and Weir, , Bevan S. and Hyde, Kevin D. and Shenoy,, Belle Damodara (2013) The ApMat marker can resolve Colletotrichum species: a case study with Mangifera indica. Fungal Divers. Fungal Diversity, 61 (1). pp. 117-138.

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Abstract

Anthracnose disease caused by the Colletotrichum gloeosporioides species complex is a major problem worldwide. In this study, we investigated the phylogenetic diversity of 207 Indian Colletotrichum isolates, associated with symptomatic and asymptomatic tissues of mango, belonging to this species complex. Phylogenetic analyses were performed based on a 6-gene dataset (act, cal, chs1, gapdh, ITS and tub2), followed by ApMat sequence-analysis. The ApMat-based phylogeny was found to be superior as it provided finer resolution in most of the species-level clades. Importantly, the ApMat marker identified seven lineages within C. siamense sensu lato, including C. jasmini-sambac, C. hymenocallidis, C. melanocaulon, C. siamense sensu stricto and three undesignated, potentially novel lineages. In this study, C. fragariae sensu stricto, C. fructicola, C. jasmini-sambac, C. melanocaulon and five undesignated, potentially novel lineages were found to be associated with mango tissues. There is a need to develop a consensus among mycologists as to which genes should be used to define and delimit a Colletotrichum species and in the mean time mycologists should voluntarily restrain from describing new species based on inadequate datasets.

Item Type:	Article
Additional Information:	Copyright of this article belongs to Springer International Publihsing
Uncontrolled Keywords:	Microbial ecology; Fungus genetics; Biodiversity
Depositing User:	Dr. K.P.S.Sengar
Date Deposited:	11 Feb 2015 09:07
Last Modified:	04 Jun 2015 04:15
URI:	http://crdd.osdd.net/open/id/eprint/1616

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