Journal
STUDIES IN MYCOLOGY
Volume -, Issue 83, Pages 19-48Publisher
CENTRAALBUREAU SCHIMMELCULTURE
DOI: 10.1016/j.simyco.2016.06.002
Keywords
Cryptic species; Gaeumannomyces graminis; Magnaporthaceae; Phylogeny; Triticum
Categories
Funding
- Biotechnology and Biological Sciences Research Council of the UK (BBSRC) [BB/J/00426X/1]
- BBSRC [BB/I002278/1]
- Biotechnology and Biological Sciences Research Council [BBS/E/C/00005203, BBS/E/C/00004494, BBS/E/C/00004985, BBS/E/C/00004973] Funding Source: researchfish
- Engineering and Physical Sciences Research Council [TS/I001050/1] Funding Source: researchfish
- BBSRC [BBS/E/C/00004985, BBS/E/C/00004973, BBS/E/C/00005203] Funding Source: UKRI
- EPSRC [TS/I001050/1] Funding Source: UKRI
Ask authors/readers for more resources
Take-all disease of Poaceae is caused by Gaeumannomyces graminis (Magnaporthaceae). Four varieties are recognised in G. graminis based on ascospore size, hyphopodial morphology and host preference. The aim of the present study was to clarify boundaries among species and varieties in Gaeumannomyces by combining morphology and multi-locus phylogenetic analyses based on partial gene sequences of ITS, LSU, tef1 and rpb1. Two new genera, Falciphoriella and Gaeumannomycella were subsequently introduced in Magnaporthaceae. The resulting phylogeny revealed several cryptic species previously overlooked within Gaeumannomyces. Isolates of Gaeumannomyces were distributed in four main clades, from which 19 species could be delimited, 12 of which were new to science. Our results show that the former varieties Gaeumannomyces graminis var. avenae and Gaeumannomyces graminis var. tritici represent species phylogenetically distinct from G. graminis, for which the new combinations G. avenae and G. tritici are introduced. Based on molecular data, morphology and host preferences, Gaeumannomyces graminis var. maydis is proposed as a synonym of G. radicicola. Furthermore, an epitype for Gaeumannomyces graminis var. avenae was designated to help stabilise the application of that name.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available