Fig. 2.

Correlations of CT_min across developmental thermal environments. Diagonal elements show the DGRP line mean CT_min ( ± SE) sorted by increasing values within rearing regime. Plots above the diagonal show the phenotypic correlations, r_p (SE in parenthesis) along with the printed genetic correlations, r_g (SE in parenthesis) between CT_min for pairs of environments. Plots below the diagonal show the correlations between the rank order of DGRP lines, r_r (SE in parenthesis). In these plots, the DGRP lines are ranked within rearing regimes from 1 to 166. All correlations are Pearson’s product moment correlations. In all plots above and below the diagonal, the grey dots represent one DGRP line. Black lines are the regression lines visualising the correlations. All correlations are significantly different from zero, i.e., the estimate deviate more than 1.645 × SE from 0 (p < 0.05). In the lower right corners of the above diagonal plots, the genetic correlations, r_g are compared pairwise within rows, and significantly different correlations are denoted with separate letters, e.g., r_g (17, 20 °C) vs. r_g (17, 23 °C). In the below diagonal plots, the letters represent significant differences in pairwise comparisons of rank correlations, r_r within columns. Some correlations have more letters as they are similar to some but different from other correlations. Comparisons of these correlations are based on Fisher’s z transformation (n = 166)