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Revisiting demographic processes in cattle with genome-wide population genetic analysis

Orozco Ter Wengel, Pablo, Barbato, Mario, Nicolazzi, Ezequiel, Biscarini, Filippo, Milanesi, Marco, Davies, Wyn, Williams, Don, Stella, Alessandra, Ajmone-Marsan, Paolo and Bruford, Michael William 2015. Revisiting demographic processes in cattle with genome-wide population genetic analysis. Frontiers in Genetics 6 , 191. 10.3389/fgene.2015.00191

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Abstract

The domestication of the aurochs took place approximately 10,000 years ago giving rise to the two main types of domestic cattle known today, taurine (Bos taurus) domesticated somewhere on or near the Fertile Crescent, and indicine (Bos indicus) domesticated in the Indus Valley. However, although cattle have historically played a prominent role in human society the exact origin of many extant breeds is not well known. Here we used a combination of medium and high-density Illumina Bovine SNP arrays (i.e., ~54,000 and ~770,000 SNPs, respectively), genotyped for over 1300 animals representing 56 cattle breeds, to describe the relationships among major European cattle breeds and detect patterns of admixture among them. Our results suggest modern cross-breeding and ancient hybridisation events have both played an important role, including with animals of indicine origin. We use these data to identify signatures of selection reflecting both domestication (hypothesized to produce a common signature across breeds) and local adaptation (predicted to exhibit a signature of selection unique to a single breed or group of related breeds with a common history) to uncover additional demographic complexity of modern European cattle.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Sustainable Places Research Institute (PLACES)
Subjects: Q Science > QL Zoology
Additional Information: Copyright © 2015 Orozco-terWengel, Barbato, Nicolazzi, Biscarini, Milanesi, Davies, Williams, Stella, Ajmone-Marsan and Bruford. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Publisher: Frontiers Media
ISSN: 1664-8021
Date of First Compliant Deposit: 30 March 2016
Date of Acceptance: 12 May 2015
Last Modified: 20 Jun 2019 20:20
URI: http://orca.cf.ac.uk/id/eprint/77791

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