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Hereditas(Beijing) ›› 2020, Vol. 42 ›› Issue (2): 145-152.doi: 10.16288/j.yczz.19-253

• Review • Previous Articles     Next Articles

The application of genomic selection in pig cross breeding

Anqi Yang1,2,3(), Bin Chen1,3(), Maoliang Ran1,3(), Guangmin Yang2, Cheng Zeng2   

  1. 1. College of Animal Science & Technology, Hunan Agricultural University, Changsha 410128, China
    2. Hunan Micolta Bioresource Inc, Changsha 410331, China
    3. Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Changsha 410128, China
  • Received:2019-08-28 Revised:2020-02-08 Online:2020-02-17 Published:2020-02-19
  • Supported by:
    the National Key Research and Development(2017YFD0501504);the National Key Research and Development(2016YFD0501308);Special Fund for the Industrial Technology System Construction of Modern Agriculture(CARS-36)

Abstract:

Genomic selection is a form of marker-assisted selection in which genetic markers covering the entire genome are used so that all quantitative trait loci are in linkage disequilibrium with at least one marker. Genomic selection improves the efficiency and accuracy of breeding and it is widely used in purebred breeding across many animal species. However, some studies indicate that the accuracy of genome selection in cross breeding needs to be improved,especially in cross population. As one of the most extensive breeding methods employed in the swine industry, cross breeding has significant, potential research and economic value to further improve its performance by combining with genomic selection. In this review, we summarize the application of genomic selection in pigs, and elucidate the genomic selection deficiencies in breeding hybrid pigs. This review will also provide valuable insights for the future application and improvement of genomic selection in pig cross breeding.

Key words: genomic selection, swine, cross breeding, statistical genetics