Fig. 3

QTL analysis of quantitative variation in hindwing red. a Heat map for each family showing the proportion of individuals that have red pigmentation at each pixel in the raster object. b Single locus multivariate QTL scans (using PCs from PCAs in Fig. S12) showing the loci on chromosome 18 and 12 in the F2 family B10 and on chromosome 1 in the backcross family B14