Bolormaa, Sunduimijid; Hayes, B; Hawken, R; Zhang, Yuandan; Goddard, Michael E

Author(s)

Bolormaa, Sunduimijid

Hayes, B

Hawken, R

Zhang, Yuandan

Goddard, Michael E

Publication Date

2010

Abstract

Taurine (Bos 'taurus') and zebu (Bos 'indicus') cattle were domesticated independently in the Near East and in India respectively (Beja-Pereira et al., 2006) and are believed to have diverged 117-275,000 years ago (Bradley et al., 2006). Bos 'taurus' cattle were introduced to Australia by European settlers in the end of the 18th century. The main 'B. indicus' breed used for beef production in Australia is the Brahman which was imported in the 20th century. The Brahman breed originated in the United States of America in the early 1900s where it was developed from progeny of four Indian cattle breeds with some infusion of British-bred cattle (http://www.brahman.com.au/history.html). Since then crossbreeding between Brahman and 'B. taurus' breeds has been used to form several composite breeds such as the Santa Gertrudis. Because this crossbreeding has been recent, large chromosome segments of either 'B. taurus' or 'B. indicus' origin should be segregating in these composite breeds. Due to their long separation and different selection pressures, 'B. indicus' and 'B. taurus' cattle may differ substantially in allele frequency at some genes affecting quantitative traits. If we can detect chromosome segments that derive from zebu or taurine origin, we can estimate their effect on quantitative traits and hence detect quantitative trait loci (QTLs) where there is a large difference in allele frequency between the sub-species. In this paper, we present two methods to determine the origin of a chromosome segment based on 50K SNP data and show that, at some positions in the genome, 'B. indicus' and 'B. taurus' chromosome segments differ in their effect on live weight or carcase weight.

Citation

Proceedings of the 9th World Congress on Genetics Applied to Livestock Production

ISBN

9783000316081

Link

https://hdl.handle.net/1959.11/7202

Publisher

German Society for Animal Science

Title

Detection of Chromosome Segments of Zebu and Taurine Origin and Their Effect on Body Weight

Type of document

Conference Publication

Entity Type

Publication

Author(s)	Bolormaa, Sunduimijid Hayes, B Hawken, R Zhang, Yuandan Goddard, Michael E
Publication Date	2010
Abstract	Taurine (Bos 'taurus') and zebu (Bos 'indicus') cattle were domesticated independently in the Near East and in India respectively (Beja-Pereira et al., 2006) and are believed to have diverged 117-275,000 years ago (Bradley et al., 2006). Bos 'taurus' cattle were introduced to Australia by European settlers in the end of the 18th century. The main 'B. indicus' breed used for beef production in Australia is the Brahman which was imported in the 20th century. The Brahman breed originated in the United States of America in the early 1900s where it was developed from progeny of four Indian cattle breeds with some infusion of British-bred cattle (http://www.brahman.com.au/history.html). Since then crossbreeding between Brahman and 'B. taurus' breeds has been used to form several composite breeds such as the Santa Gertrudis. Because this crossbreeding has been recent, large chromosome segments of either 'B. taurus' or 'B. indicus' origin should be segregating in these composite breeds. Due to their long separation and different selection pressures, 'B. indicus' and 'B. taurus' cattle may differ substantially in allele frequency at some genes affecting quantitative traits. If we can detect chromosome segments that derive from zebu or taurine origin, we can estimate their effect on quantitative traits and hence detect quantitative trait loci (QTLs) where there is a large difference in allele frequency between the sub-species. In this paper, we present two methods to determine the origin of a chromosome segment based on 50K SNP data and show that, at some positions in the genome, 'B. indicus' and 'B. taurus' chromosome segments differ in their effect on live weight or carcase weight.
Citation	Proceedings of the 9th World Congress on Genetics Applied to Livestock Production
ISBN	9783000316081
Link	https://hdl.handle.net/1959.11/7202
Publisher	German Society for Animal Science
Title	Detection of Chromosome Segments of Zebu and Taurine Origin and Their Effect on Body Weight
Type of document	Conference Publication
Entity Type	Publication

Detection of Chromosome Segments of Zebu and Taurine Origin and Their Effect on Body Weight

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