What a New Massive Mexican Family Study Tells Us About the Effects of Ancestry on Different Traits

How does genetic ancestry shape human traits? A new study by Wang and colleagues (2025), drawing on data from over 140,000 adults in Mexico City, set out to answer this question. By leveraging family-based designs in a highly admixed population, the researchers examined 15 complex traits, but highlighted three in particular - height, type 2 diabetes (T2…