Diapause incidences in allelic combinations of two of the five genes of BC females of <i>Drosophila triauraria</i>.

<p>“homo,” homozygous for alleles from the non-diapause strain; “hetero,” heterozygous for those from the diapause and non-diapause strains. In the cases of <i>per</i>, <i>Clk</i>, and <i>cyc</i> (rows 1, 3, and 4), the blue and red lines almost overlap in each graph, indicating that there was no allelic effect on diapause incidence. In the cases of <i>tim</i> and <i>cry</i> (rows 2 and 5), the blue lines are always higher than the red lines in each graph, indicating that there is an effect of allelic differences on diapause incidence; furthermore, the blue and red lines are completely parallel in the combination of <i>tim</i> and <i>cry</i>, indicating that there is no interaction effect between them. These effects were confirmed by the statistical analysis.