Genetic variation in Northern Thailand Hill Tribes: origins and relationships with social structure and linguistic differences
Davide Besaggio,Silvia Fuselli,Metawee Srikummool,Jatupol Kampuansai,Loredana Castrì,Chris Tyler-Smith,Mark Seielstad,Daoroong Kangwanpong,Giorgio Bertorelle +8 more
TLDR
Overall, the sex specific genetic signature of different postmarital habits of residence in the Hill Tribes is robust, and specific perturbations related to linguistic differences, population specific traits, and the complex migratory history of these groups can be identified.Abstract:
Background
Ethnic minorities in Northern Thailand, often referred to as Hill Tribes, are considered an ideal model to study the different genetic impact of sex-specific migration rates expected in matrilocal (women remain in their natal villages after the marriage and men move to their wife's village) and patrilocal societies (the opposite is true). Previous studies identified such differences, but little is known about the possible interaction with another cultural factor that may potentially affect genetic diversity, i.e. linguistic differences. In addition, Hill Tribes started to migrate to Thailand in the last centuries from different Northern areas, but the history of these migrations, the level of genetic legacy with their places of origin, and the possible confounding effects related to this migration history in the patterns of genetic diversity, have not been analysed yet. Using both original and published data on the Hill Tribes and several other Asian populations, we focused on all these aspects.read more
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