A Genomewide Association Study of Skin Pigmentation in a South Asian Population

Autor: P. V. Krishna Pant, Wendy Filsell, Martin R. Green, Carl Jarman, Amelia Fereday, Rebecca S. Ginger, Tony Dadd, David Cox, Renee Stokowski, David A. Hinds, Frans van der Ouderaa
Rok vydání: 2007
Předmět:
Zdroj: The American Journal of Human Genetics. 81(6):1119-1132
ISSN: 0002-9297
DOI: 10.1086/522235
Popis: We have conducted a multistage genomewide association study, using 1,620,742 single-nucleotide polymorphisms to systematically investigate the genetic factors influencing intrinsic skin pigmentation in a population of South Asian descent. Polymorphisms in three genes--SLC24A5, TYR, and SLC45A2--yielded highly significant replicated associations with skin-reflectance measurements, an indirect measure of melanin content in the skin. The associations detected in these three genes, in an additive manner, collectively account for a large fraction of the natural variation of skin pigmentation in a South Asian population. Our study is the first to interrogate polymorphisms across the genome, to find genetic determinants of the natural variation of skin pigmentation within a human population.
Databáze: OpenAIRE