Crossovers are distributed along chromosome 4 during α-α unisexual and a-α bisexual reproduction.

<p>Blue bars represent the number of progeny from α-α unisexual reproduction between strains 431α and XL280αSS, while the red bars represent the number of genotypes from <b>a</b>-α bisexual reproduction between strains 431α and XL280<b>a</b>. The 12 progeny from α-α unisexual reproduction, as well as the 2 genotypes from <b>a</b>-α bisexual reproduction that were disomic for chromosome 4 were excluded.