Allelic content of sperm DNA compared to that of zygotic (fin clip) control DNA.

The ordinate is the ratio of the peak heights for the two alleles in gametic DNA divided by the corresponding ratio for control DNA, or its reciprocal, if less than 1.0. Four different classes of loci were tested: those that had exhibited low transmission bias in the pedigree analysis vs. those that had exhibited high transmission bias, further partitioned by whether the males tested were inter-lineage hybrids (hybrid) or non-hybrids/intra-lineage hybrids (pure). The hybrid/high class of loci was significantly more deviated from unity than either the hybrid/low or the pure/high classes.