Genetics of self/nonself recognition in Serpula lacrymans

Fungal Genetics and Biology : FG & B
Håvard KauserudTrond Schumacher

Abstract

This study provides an analysis of the vegetative incompatibility system in Serpula lacrymans (Basidiomycota), a genetic system used to recognize nonself in fungi. Seventy-five worldwide isolates could be grouped into eight vegetative compatibility (VC) types, some of them distributed on different continents. Mating studies combined with vegetative incompatibility analyses revealed that the vegetative incompatibility response between isolates mainly could be explained by two biallelic vegetative incompatibility (vic) loci. The frequency distributions of the interpreted vic alleles do not seem to support the idea of frequency-dependent or balancing selection acting on the vic loci. We find little genetic variation at the vic loci and in one of the loci there was a significant heterozyote deficiency among strains in the overall material. The results may be explained by a recent worldwide dispersal of a few S. lacrymans isolates and, correspondingly, only a few vic alleles are being maintained in these populations.

Citations

Mar 18, 2008·Applied and Environmental Microbiology·Monika TlalkaSarah Watkinson
Mar 19, 2016·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·María Isabel FonsecaLaura Lidia Villalba
Jan 30, 2013·Evolution; International Journal of Organic Evolution·Marie L NydamAnthony W De Tomaso
Dec 3, 2010·Evolution; International Journal of Organic Evolution·Manuela López-VillavicencioTatiana Giraud
Jan 2, 2014·Fungal Genetics and Biology : FG & B·M A Van der NestJ Stenlid
Feb 8, 2013·G3 : Genes - Genomes - Genetics·Inger SkredeHåvard Kauserud

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