Table 1. QTL peak positions.

The position of the major QTL peak for 3-day-old F1 females, 21-day-old F1 females, and the combined data set are shown. For each analysis, the peak position, Δ2-LOD drop confidence interval, and Bayesian credible interval [44] in dm6 [45] are provided. The percent of phenotypic variation explained by the QTL peak is based on the genotype of each sampled RIL at the LOD peak position. The individual numerical values required to identify LOD peaks and intervals for 3-day-old, 21-day-old, and both F1 females can be found in S4, S5 and S3 Data, respectively.

Data Set	LOD Score	Peak Position	Δ2-LOD CI	Bayes CI	Percent Variation
3-day-old females	19.59	2L:12,260,000	2L:12,080,000–12,380,000	2L:12,080,000–12,320,000	14.2
21-day-old females	17.22	2L:12,250,000	2L:12,110,000–12,390,000	2L:12,160,000–12,330,000	14.8
both	34.90	2L:12,260,000	2L:12,120,000–12,350,000	2L:12,180,000–12,310,000	13.8

Abbreviations: Δ2-LOD, Δ2 logarithm of the odds; CI, confidence interval; dm6, Drosophila melanogaster genome release 6; LOD, logarithm of the odds; QTL, quantitative trait locus; RIL, recombinant inbred line.