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

Burren, Alexander; Signer-Hasler, Heidi; Neuditschko, M.; Tetens, J.; Kijas, J.; Drögemüller, C.; Flury, Christine (2014). Fine-scale population structure analysis of seven local Swiss sheep breeds using genome-wide SNP data Animal Genetic Resources : an international journal, 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:

School of Agricultural, Forest and Food Sciences HAFL > Resource-efficient agricultural production systems
School of Agricultural, Forest and Food Sciences HAFL > Agriculture

Name:

Burren, Alexander0000-0001-9948-7039;
Signer-Hasler, Heidi0000-0001-5193-5306;
Neuditschko, M.;
Tetens, J.;
Kijas, J.;
Drögemüller, C. and
Flury, Christine

Subjects:

S Agriculture > SF Animal culture

ISSN:

2078-6336

Publisher:

Cambridge University Press

Language:

English

Submitter:

Admin import user

Date Deposited:

11 Sep 2019 13:18

Last Modified:

18 Dec 2020 13:27

Publisher DOI:

10.1017/S2078633614000253

Uncontrolled Keywords:

dense marker data, genetic diversity, ovis aries

ARBOR DOI:

10.24451/arbor.6051

URI:

https://arbor.bfh.ch/id/eprint/6051

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