Fig. 1
Linear regressions of critical thermal minimum (CTmin) across the five developmental temperatures. Each grey line represents one DGRP line (n = 166). The two full black lines represent the DGRP line with the steepest slope and the DGRP line with the flattest slope, with the difference in CTmin from developing at 17–29 °C indicated as ΔCTmin. The two dashed black lines represent the DGRP lines with the highest and lowest average CTmin across the temperatures indicated as \(\overline {{\mathrm{CT}}} _{\min }\). These latter two DGRP lines represent a genotype that performs poorly across environments and a genotype that performs well across environments
