Figure 3.

Pairwise comparison of the nucleotide sequences within and around the mating-type loci in QM6a and CBS999.97(MAT1-1). The tracks between two strains are color-coded to indicate nucleotide sequence identity. The mating-type genes (mat1–1-1, mat1–1-2, mat1–1-3 and mat1–2-1) are dissimilar in sequence but are found at the same loci on the third chromosomes and flanked by two evolutionarily conserved genes, the DNA lyase apn2 and the complex I intermediate-associated protein 30 gene cia30, respectively. Interestingly, the three mating-type genes (matA-1, matA-2, matA-3) in the MAT-A locus of Neurospora crassa are flanked by apn2 and the cytoskeleton assembly gene sla2.