Prediction of eye and skin color in diverse populations using seven SNPs.

Forensic Sci Int Genet

Office of Chief Medical Examiner of the City of New York, Department of Forensic Biology, 421 East 26th Street, New York, NY, USA.

Published: November 2011

AI Article Synopsis

  • The study highlights the significance of using genetic information to identify visible characteristics of human remains, especially when traditional physical attributes are unavailable.
  • Seven single nucleotide polymorphisms (SNPs) were validated from 554 samples to predict eye and skin color, showing applicability across various populations with low error rates.
  • The findings suggest these SNPs could enhance forensic testing, although predicting skin color is more complex and varies among different populations.

Article Abstract

An essential component in identifying human remains is the documentation of the decedent's visible characteristics, such as eye, hair and skin color. However, if a decedent is decomposed or only skeletal remains are found, this critical, visibly identifying information is lost. It would be beneficial to use genetic information to reveal these visible characteristics. In this study, seven single nucleotide polymorphisms (SNPs), located in and nearby genes known for their important role in pigmentation, were validated on 554 samples, donated from non-related individuals of various populations. Six SNPs were used in predicting the eye color of an individual, and all seven were used to describe the skin coloration. The outcome revealed that these markers can be applied to all populations with very low error rates. However, the call-rate to determine the skin coloration varied between populations, demonstrating its complexity. Overall, these results prove the importance of these seven SNPs for potential forensic tests.

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Source
http://dx.doi.org/10.1016/j.fsigen.2010.10.005DOI Listing

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