Population structure and history of the Welsh sheep breeds determined by whole genome genotyping

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• 作者：Sarah E. Beynon ; Gancho T. Slavov ; Marta Farré ; Bolormaa Sunduimijid…
• 关键词：Ovis aries ; Welsh native breeds ; Selection ; Population structure ; Genotyping ; Demography ; Selective breeding ; SNP ; Sequencing ; Linkage disequilibrium
• 刊名：BMC Genetics
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：16
• 期：1
• 全文大小：2,881 KB
• 刊物主题：Life Sciences, general; Animal Genetics and Genomics; Microbial Genetics and Genomics; Plant Genetics & Genomics; Genetics and Population Dynamics;
• 出版者：BioMed Central
• ISSN：1471-2156

文摘

Background One of the most economically important areas within the Welsh agricultural sector is sheep farming, contributing around £230 million to the UK economy annually. Phenotypic selection over several centuries has generated a number of native sheep breeds, which are presumably adapted to the diverse and challenging landscape of Wales. Little is known about the history, genetic diversity and relationships of these breeds with other European breeds. We genotyped 353 individuals from 18 native Welsh sheep breeds using the Illumina OvineSNP50 array and characterised the genetic structure of these breeds. Our genotyping data were then combined with, and compared to, those from a set of 74 worldwide breeds, previously collected during the International Sheep Genome Consortium HapMap project.