Table 1.

Taxonomy^a and mating type systems of the fungal species discussed in the text

Species	Mating system	Mating type loci	Reference(s)
Ascomycota
Saccharomyces cerevisiae	Bipolar	MATa and MATα	42
Schizosaccharomyces pombe	Bipolar	mat1P and mat1M	72
Neurospora crassa	Bipolar	mata and matA	8
Basidiomycota
Ustilaginomycotina
Ustilago hordei	Bipolar	Mat-1 and Mat-2, a and b linked	5, 35
Ustilago maydis	Tetrapolar	Biallelic a and multiallelic b	5, 6
Pucciniomycotina
Microbotryum violaceum	Bipolar	MAT A1 and MAT A2, a and b linked	23
Agaricomycotina
Tremellomycetes
Cryptococcus neoformans (teleomorph name: Filobasidiella neoformans)	Bipolar	Mata and Matα, sex chromosome	35
Agaricomycetes
Coprinellus disseminatus	Bipolar	Multiallelic, multiple subloci in A, B genes present	41
Coprinopsis cinerea	Tetrapolar	Multiallelic, multiple subloci in both A and B	12
Laccaria bicolor	Tetrapolar	Multiallelic A and B	70
Phanerochaete chrysosporium	Bipolar	Multiallelic A, B genes present	63, 70
Pholiota nameko	Bipolar	Multiallelic A, B genes present	122
Pleurotus djamor	Tetrapolar	Multiallelic A and B	40
Postia placenta	Bipolar?	A and B genes present	62
Schizophyllum commune	Tetrapolar	Multiallelic, multiple subloci in both A and B	80

^aSee reference 34.