Spatial patterns of variation due to natural selection in humans.

Spatial patterns of variation due to natural selection in humans.
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DOI:
10.1038/nrg2632
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发表时间:
2009-11
期刊:
Nature reviews. Genetics
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其他
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在旨在促进全基因组关联作图的技术和采样努力的推动下,人类遗传学家现在正在以前所未有的细节研究遗传变异的地理学。凭借高基因组覆盖率和地理分辨率,这些研究正在识别具有选择空间特征的基因座,例如极端水平的分化和与环境变量的相关性。总的来说,这些基因位点的模式开始为人类适应过程提供新的见解。在这里,我们回顾了这些研究的挑战和新出现的结果,包括人口结构如何影响对新的选择压力的反应。
Empowered by technology and sampling efforts designed to facilitate genome-wide association mapping, human geneticists are now studying the geography of genetic variation with unprecedented detail. With high genomic coverage and geographic resolution, these studies are identifying loci with spatial signatures of selection, such as extreme levels of differentiation and correlations with environmental variables. Collectively, patterns at these loci are beginning to provide novel insights into the process of human adaptation. Here we review the challenges of these studies and emerging results, including how human population structure has influenced the response to novel selective pressures.
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