Fine-scale population structure analysis of seven local Swiss sheep breeds using genome-wide SNP data

Burren, Alexander; Signer-Hasler, Heidi; Neuditschko, Markus; Tetens, Jens; Kijas, James; Drögemüller, Cord; Flury, Christine (2014). Fine-scale population structure analysis of seven local Swiss sheep breeds using genome-wide SNP data. Animal genetic resources, 55, pp. 67-76. Cambridge University Press 10.1017/S2078633614000253

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As part of the global sheep Hapmap project, 24 individuals from each of seven indigenous Swiss sheep breeds (Bundner Oberländer sheep (BOS), Engadine Red sheep (ERS), Swiss Black-Brown Mountain sheep (SBS), Swiss Mirror sheep (SMS), Swiss White Alpine (SWA) sheep, Valais Blacknose sheep (VBS) and Valais Red sheep (VRS)), were genotyped using Illumina’s Ovine SNP50 BeadChip. In total, 167 animals were subjected to a detailed analysis for genetic diversity using 45 193 informative single nucleotide polymorphisms. The results of the phylogenetic analyses supported the known proximity between populations such as VBS and VRS or SMS and SWA. Average genomic relatedness within a breed was found to be 12 percent (BOS), 5 percent (ERS), 9 percent (SBS), 10 percent (SMS), 9 percent (SWA), 12 percent (VBS) and 20 percent (VRS). Furthermore, genomic relationships between breeds were found for single individuals from SWA and SMS, VRS and VBS as well as VRS and BOS. In addition, seven out of 40 indicated parent–offspring pairs could not be confirmed. These results were further supported by results from the genome-wide population cluster analysis. This study provides a better understanding of fine-scale population structures within and between Swiss sheep breeds. This relevant information will help to increase the conservation activities of the local Swiss sheep breeds.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH)
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Institute of Genetics

UniBE Contributor:

Neuditschko, Markus; Tetens, Jens and Drögemüller, Cord

Subjects:

600 Technology > 630 Agriculture
500 Science > 590 Animals (Zoology)
600 Technology > 610 Medicine & health

ISSN:

2078-6336

Publisher:

Cambridge University Press

Language:

English

Submitter:

Tosso Leeb

Date Deposited:

29 Jan 2015 15:04

Last Modified:

01 Dec 2019 02:31

Publisher DOI:

10.1017/S2078633614000253

BORIS DOI:

10.7892/boris.62473

URI:

https://boris.unibe.ch/id/eprint/62473

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