Fig. 1From: Genetic mapping of metabolic traits in the blind Mexican cavefish reveals sex-dependent quantitative trait loci associated with cave adaptationGenetic mapping of metabolism-related traits in Astyanax mexicanus. A Surface fish and Pachón cavefish were paired to produce F1 surface/Pachón hybrids. F2 hybrids were generated through interbreeding F1 hybrid siblings. B Hybrids were raised in group housing to 14 months at which point they were housed individually in 1.5 L tanks and fed 6 mg of pellet food per day for 4 months. Figure indicates the timeline for phenotype quantification. C Representative image of female F2 organs that were used to measure gastrointestinal tract length, visceral fat area (VAT), and liver areaBack to article page