虚假关系
遗传变异
进化生物学
人类遗传变异
基因分型
生物
遗传谱系
变化(天文学)
人类基因组
基因组
地理
遗传学
基因型
人口学
基因
人口
统计
社会学
物理
天体物理学
数学
作者
John Novembre,Toby Johnson,Katarzyna Bryc,Zoltán Kutalik,Adam R. Boyko,Adam Auton,Amit Indap,Karen S. King,Sven Bergmann,Matthew R. Nelson,Matthew Stephens,Carlos D. Bustamante
出处
期刊:Nature
[Springer Nature]
日期:2008-08-31
卷期号:456 (7218): 98-101
被引量:1408
摘要
Understanding the genetic structure of human populations is of fundamental interest to medical, forensic and anthropological sciences. Advances in high-throughput genotyping technology have markedly improved our understanding of global patterns of human genetic variation and suggest the potential to use large samples to uncover variation among closely spaced populations. Here we characterize genetic variation in a sample of 3,000 European individuals genotyped at over half a million variable DNA sites in the human genome. Despite low average levels of genetic differentiation among Europeans, we find a close correspondence between genetic and geographic distances; indeed, a geographical map of Europe arises naturally as an efficient two-dimensional summary of genetic variation in Europeans. The results emphasize that when mapping the genetic basis of a disease phenotype, spurious associations can arise if genetic structure is not properly accounted for. In addition, the results are relevant to the prospects of genetic ancestry testing; an individual's DNA can be used to infer their geographic origin with surprising accuracy-often to within a few hundred kilometres.
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