Affiliation:
1. Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria 0028, South Africa
Abstract
Chrysoporthe syzygiicola and C. zambiensis are ascomycete tree pathogens first described from Zambia, causing stem canker on Syzygium guineense and Eucalyptus grandis, respectively. The taxonomic descriptions of these two species were based on their anamorphic states, as no sexual states are known. The main purpose of this work was to use whole genome sequences to identify and define the mating-type (MAT1) loci of these two species. The unique MAT1 loci for C. zambiensis and C. syzygiicola consist of the MAT1-1-1, MAT1-1-2, and MAT1-2-1 genes, but the MAT1-1-3 gene is absent. Genes canonically associated with opposite mating types were present at the single mating-type locus, suggesting that C. zambiensis and C. syzygiicola have homothallic mating systems.
Funder
industry partners of the Tree Protection Co-operative Programme
Forestry South Africa
DSI/NRF Center of Excellence in Plant Health Biotechnology
University of Pretoria, South Africa
Subject
Genetics (clinical),Genetics
Reference63 articles.
1. Mating-type structure, evolution, and function in Euascomycetes;Esser;The Mycota,2006
2. Mating-type structure, function, regulation and evolution in the Pezizomycotina;Esser;The Mycota,2006
3. Mating types and sexual development in filamentous ascomycetes;Coppin;Micobiol. Mol. Biol. Rev.,1997
4. Homothallism: An umbrella term for describing diverse sexual behaviours;Wilson;IMA Fungus,2015
5. Inferring outcrossing in the homothallic fungus Sclerotinia sclerotiorum using linkage disequilibrium decay;Attanayake;Heredity,2014