FIG. 1.

Expanded catalog of fungal meiotic genes. Venn diagram showing the presence or absence of the genes known to be directly or indirectly involved in meiotic processes in Saccharomyces cerevisiae (green circle) (Nowrousian et al. 2010). The presence or absence of these genes have been scored in the genomes of fungal relatives, including representative species belonging to the phylum Ascomycota ([Nowrousian et al. 2010], purple circle), Basidiomycota ([Donaldson and Saville 2008; Burns et al. 2010], orange circle), Chytridiomycota (red circle), Zygomycota (dark blue circle), and the AMF Glomeromycota (Green circle), inventoried in detail in supplementary table S1, Supplementary Material online. Meiosis-specific genes are shown in red text. Asterisks represent genes that are sometimes absent in the genome of one or more members of a given phylum. Data included in the purple circle were reported elsewhere (Nowrousian et al. 2010), and we did not repeat the analyses.