Acta Veterinaria et Zootechnica Sinica ›› 2024, Vol. 55 ›› Issue (4): 1356-1369.doi: 10.11843/j.issn.0366-6964.2024.04.002

• REVIEW • Previous Articles     Next Articles

Research Progress of Copy Number Variation in Livestock

PENG Peiya1, CHEN Yuhan1, YANG Long1, WANG Ming1, ZHAO Ruiting1, HE Jun1, YIN Yulong1,2*, LIU Mei1*   

  1. 1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
    2. Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
  • Received:2023-10-16 Online:2024-04-23 Published:2024-04-26

Abstract: Copy number variation (CNV) is a type of structural variation with DNA fragment size ranging from 50 bp to 5 Mb in the genome. In recent years, with the development of detection technology, the application of detection methods of CNVs have expanded from widely used techniques such as CGH, SNP, and NGS to the emerging third-generation sequencing technology, leading to more CNVs that play important roles in areas such as the origin evolution and genetic breeding of livestock have been identified. However, comprehensive reviews on the research progress of CNV in livestock such as cattle, sheep, goat, pig and horse from the perspective of detection technology development are still lacking up to now. Therefore, this review introduces the main detection methods of CNN firstly. Thus, recent research progress in the detection of CNVs using CGH, SNP, and WGS technologies (including next-generation sequencing and third-generation sequencing) in the important livestock species-cattle, sheep, pig and horse-was comprehensively summarized; Finally, the problems of current research on CNV in domestic animals and its application prospects in animal genetic breeding in the future were proposed. This review is expected to lay the basis for future study on CNV in livestock.

Key words: cattle, goat, sheep, pig, copy number variation, research progress

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