Fig. 4.

Expression of genes with strongest evidence for directional, transgressive, and epistatic genetics. In each panel, the first column shows data from 112 segregants and the second and third columns show replicate measurements in the BY and RM parents, respectively. (Left) The cytochrome c reductase subunit YPR191W/QCR2, the annotated gene giving the most significant statistic in the test for directional genetics. (Center) The histidine and purine biosynthetic enzyme YMR120C/ADE17, which gave the most significant statistic in the test for transgressive segregation. (Right) The transcriptional regulator YML051W/GAL80, the annotated gene that gave the most significant statistic in the test for epistasis.