Predicting phenotype from genotype: normal pigmentation.

Predicting phenotype from genotype: normal pigmentation.
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DOI:
10.1111/j.1556-4029.2009.01317.x
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发表时间:
2010-03-01
影响因子:
1.6
通讯作者:
Brilliant MH
Brilliant MH
中科院分区:
医学4区
文献类型:
--
作者:
Valenzuela RK;Henderson MS;Walsh MH;Garrison NA;Kelch JT;Cohen-Barak O;Erickson DT;John Meaney F;Bruce Walsh J;Cheng KC;Ito S;Wakamatsu K;Frudakis T;Thomas M;Brilliant MH

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法医研究中的遗传信息主要限于CODIS数据和匹配样本并将其分配给个人的能力。但是,在某些情况下,给定的DNA样本与CODIS数据库中的任何人都不匹配,并且没有关于供体的其他信息可用。在这项研究中,我们确定了24个基因中的75个snp(先前涉及人类或动物色素研究),用于分析789个不同种族背景的个体的头发、皮肤和眼睛颜色的单位点和多位点关联。使用多元线性回归模型,在我们的跨人群分析中,发现五个基因中的五个snp在头发,皮肤和眼睛的色素沉着变异中占很大比例。因此,这些模型可能具有预测价值,可以从法医样本中确定个体的色素沉着类型,而不依赖于种族起源。
Genetic information in forensic studies is largely limited to CODIS data and the ability to match samples and assign them to an individual. However, there are circumstances, in which a given DNA sample does not match anyone in the CODIS database, and no other information about the donor is available. In this study, we determined 75 SNPs in 24 genes (previously implicated in human or animal pigmentation studies) for the analysis of single- and multi-locus associations with hair, skin, and eye color in 789 individuals of various ethnic backgrounds. Using multiple linear regression modeling, five SNPs in five genes were found to account for large proportions of pigmentation variation in hair, skin, and eyes in our across-population analyses. Thus, these models may be of predictive value to determine an individual’s pigmentation type from a forensic sample, independent of ethnic origin.
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