Fig. 4

Quantitative trait loci associated with blood glucose level in Astyanax mexicanus. A Location of markers (horizontal lines) on linkage group 9 indicating the peak position and bayes credible interval (box and whiskers) for QTL associated with 24 h fasting blood glucose level. B Average fasting blood glucose level (± 1SE) of F2 surface/Pachón hybrids of the indicated peak linkage group 9 QTL marker genotype after 2-weeks on the nutrient restricted diet (S = surface allele, C = cave allele). C Average fasting blood glucose level (+/1 1SE) of F2 surface/Pachón hybrids of the indicated peak linkage group 9 QTL after 4 months on the nutrient restricted diet for each genotype (S = surface allele, C = cave allele)