Mating-Type Locus Organization and Mating-Type Chromosome Differentiation in the Bipolar Edible Button Mushroom Agaricus Bisporus
G C A T T A C G G C A T genes Article Mating-Type Locus Organization and Mating-Type Chromosome Differentiation in the Bipolar Edible Button Mushroom Agaricus bisporus Marie Foulongne-Oriol 1 , Ozgur Taskent 2, Ursula Kües 3, Anton S. M. Sonnenberg 4, Arend F. van Peer 4 and Tatiana Giraud 2,* 1 INRAE, MycSA, Mycologie et Sécurité des Aliments, 33882 Villenave d’Ornon, France; marie.foulongne-oriol@inra.fr 2 Ecologie Systématique Evolution, Bâtiment 360, CNRS, AgroParisTech, Université Paris-Saclay, 91400 Orsay, France; ozgur.taskent@universite-paris-saclay.fr 3 Molecular Wood Biotechnology and Technical Mycology, Goettingen Center for Molecular Biosciences (GZMB), Büsgen-Institute, University of Goettingen, Büsgenweg 2, 37077 Goettingen, Germany; ukuees@gwdg.de 4 Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands; anton.sonnenberg@wur.nl (A.S.M.S.); arend.vanpeer@wur.nl (A.F.v.P.) * Correspondence: tatiana.giraud@universite-paris-saclay.fr Abstract: In heterothallic basidiomycete fungi, sexual compatibility is restricted by mating types, typically controlled by two loci: PR, encoding pheromone precursors and pheromone receptors, and HD, encoding two types of homeodomain transcription factors. We analysed the single mating-type locus of the commercial button mushroom variety, Agaricus bisporus var. bisporus, and of the related Citation: Foulongne-Oriol, M.; variety burnettii. We identified the location of the mating-type locus using genetic map and genome Taskent, O.; Kües, U.; Sonnenberg, information, corresponding to the HD locus, the PR locus having lost its mating-type role. We A.S.M.; van Peer, A.F.; Giraud, T.
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