The genetic structure and diversity of the A and B mating-type genes from the tropical oyster mushroom, Pleurotus djamor

Fungal Genetics and Biology : FG & B
Timothy Y JamesRytas Vilgalys

Abstract

In most heterothallic mushroom species, inbreeding is avoided by an incompatibility system determined by two loci each with multiple alleles (the A and B mating-type loci). In this study we investigated the genetic structure of the mating-type loci in the tropical oyster mushroom Pleurotus djamor using both positional cloning and degenerate PCR methods. DNA sequences from genomic regions cosegregating with the mating-type loci of P. djamor revealed homeodomain transcription factors (A) and pheromone receptors (B), suggesting the genetic basis for mating-type determination in P. djamor is the same as in the model mushroom species. Three pheromone receptors were detected in a single homokaryotic isolate of P. djamor. Only one pair of homeodomain genes was detected in the A mating-type region. It is hypothesized that the A mating-type locus of P. djamor is comprised of only one homeodomain pair, which may explain the lower number of A mating-type alleles relative to other mushroom species.

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Citations

Apr 15, 2011·Biological Reviews of the Cambridge Philosophical Society·Sylvain BilliardTatiana Giraud
Mar 2, 2010·Eukaryotic Cell·Marjatta Raudaskoski, Erika Kothe
Sep 4, 2012·Genome Génome / Conseil National De Recherches Canada·Bing-Zhi ChenYou-Jin Deng
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Jul 22, 2010·The Journal of General and Applied Microbiology·Xiangli WuTzi Bun Ng
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Nov 30, 2004·Biochemical and Biophysical Research Communications·Ping RenVishnu Chaturvedi
Sep 3, 2013·Journal of Basic Microbiology·An-Zheng LiFang-Can Lin
May 7, 2013·Fungal Genetics and Biology : FG & B·Bart P S NieuwenhuisDuur K Aanen
Dec 4, 2016·G3 : Genes - Genomes - Genetics·Christina A CuomoJohn P Fellers
Feb 8, 2013·G3 : Genes - Genomes - Genetics·Inger SkredeHåvard Kauserud
May 15, 2008·Journal of Agricultural and Food Chemistry·Mia PengillyMarinda Bloom
Jun 3, 2021·Journal of Fungi·Sophia WirthErika Kothe

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