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|Title: ||Genetic signatures of coancestry within surnames|
|Authors: ||King, Turi E.|
Ballereau, Stéphane J.
Jobling, Mark A.
|Issue Date: ||2006|
|Citation: ||Current Biology, 2006, 16, pp. 384-388.|
|Abstract: ||Surnames are cultural markers of shared ancestry within human populations. The Y chromosome, like many surnames, is paternally inherited, so men sharing surnames might be expected to share similar Y chromosomes as a signature of coancestry. Such a relationship could be used to connect branches of family trees , to validate population genetic studies based on isonymy , and to predict surname from crime-scene samples in forensics . However, the link
may be weak or absent due to multiple independent founders for many names, adoptions, name-changes and non-paternities, and mutation of Y haplotypes.
Here, rather than focusing on a single name , we take a general approach by seeking evidence for a link in a sample of 150 randomly ascertained pairs of males who each share a British surname. We show that sharing a surname significantly elevates the probability of sharing a Y-chromosomal haplotype, and that this probability increases as surname frequency decreases. Within our sample, we estimate that up to 24% of pairs share recent ancestry and that a large surname-based forensic database might contribute to the intelligence-led
investigation of up to ~70 rapes and murders per year in the UK. This approach would be applicable to any society using patrilineal surnames of reasonable time-depth.|
|DOI Link: ||10.1016/j.cub.2005.12.048|
|Version: ||Post print|
|Status: ||Peer reviewed|
|Rights: ||Copyright 2006 Elsevier Ltd. Deposited with reference to the publisher's archiving policy available on the SHERPA/RoMEO website.|
|Appears in Collections:||Published Articles, Dept. of Genetics|
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