Figure 1.

Phenotype distributions in the reference populations. We measured lifespan on media supplemented with 1.5% boric acid for 1690 RILs from the DSPR and 163 inbred lines from the DGRP. We scored eight females from each DSPR RIL and 16 females from each DGRP strain. Each plot shows the mean (filled circles) and 1-SD (vertical lines) for each genotype. RILs derived from each of the DSPR subpopulations (pA1, pA2, pB1, pB2) are shown in different colors; No significant differences in RIL mean phenotype were found between subpopulations (Welch’s t-tests, P > 0.2). DGRP, Drosophila Genetic Reference Panel; DSPR, Drosophila Synthetic Population Resource; RILs, Recombinant Inbred Lines.