High variability in a mating type linked region in the dry rot fungus Serpula lacrymans caused by frequency-dependent selection?

@article{Engh2010HighVI,
  title={High variability in a mating type linked region in the dry rot fungus Serpula lacrymans caused by frequency-dependent selection?},
  author={Ingeborg Bjorvand Engh and Inger Skrede and Glenn-Peter S{\ae}tre and H{\aa}vard Kauserud},
  journal={BMC Genetics},
  year={2010},
  volume={11},
  pages={64 - 64}
}
BackgroundThe mating type loci that govern the mating process in fungi are thought to be influenced by negative frequency-dependent selection due to rare allele advantage. In this study we used a mating type linked DNA marker as a proxy to indirectly study the allelic richness and geographic distribution of mating types of one mating type locus (MAT A) in worldwide populations of the dry rot fungus Serpula lacrymans. This fungus, which causes serious destruction to wooden constructions in… 
Molecular Characterization of Sexual Diversity in a Population of Serpula lacrymans, a Tetrapolar Basidiomycete
TLDR
It is argued that the low mating type diversity in the European S. lacrymans population restrains the dispersal and establishment of the fungus.
Extensive trans-specific polymorphism at the mating type locus of the root decay fungus Heterobasidion.
TLDR
DNA sequences of homeodomain encoding genes at the MAT locus of five closely related species of the root rot basidiomycete Heterobasidion annosum sensu lato are used to show that the extended coalescence time of MAT alleles greatly predates speciation in the group.
Large-scale fungal strain sequencing unravels the molecular diversity in mating loci maintained by long-term balancing selection
TLDR
The large number of sequenced strains highlighted the importance of sequencing multiple individuals from different species to detect the mating-related genes, the mechanisms generating diversity and the evolutionary forces maintaining them.
Long-term balancing selection in highly dynamic mating loci generates trans-species polymorphisms in fungi
TLDR
The genetic diversity of mating in Trichaptum loci is due to long-term balancing selection that likely promote sexual outcrossing, with limited recombination and duplication activity.
Contrasting demographic histories revealed in two invasive populations of the dry rot fungus Serpula lacrymans
TLDR
It is suggested that the dry rot fungus independently established in indoor environments in Europe and Japan and that invasive species can potentially establish large populations in new habitats based on a few colonizing individuals.
Mutualism and asexual reproduction influence recognition genes in a fungal symbiont.
Indoor Population Structure of The Dry Rot Fungus, Serpula lacrymans
TLDR
The results show that the population structure of Serpula lacrymans within buildings within buildings and the distribution of MAT alleles within buildings vary greatly in terms of vegetative compatibility.

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