China Animal Husbandry and Veterinary Medicine ›› 2023, Vol. 50 ›› Issue (12): 4935-4946.doi: 10.16431/j.cnki.1671-7236.2023.12.016

• Genetics and Breeding • Previous Articles     Next Articles

Advance on Selection Signal Analysis and Its Exploration for Functional Genes in Sheep

ZHANG Yanwei1,2, YU Lijuan2, XU Xinming3, ABULAIZI Aminiguli2, XIE Mengwan1,2, TANG Liping1,2, ZHENG Peiyu1,2, DI Jiang2   

  1. 1. College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Key Laboratory of Genetics Breeding and Reproduction of Xinjiang Cashmere and Wool Sheep, Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Sheep) of the Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Xinjiang Academy of Animal Sciences, Urumqi 830011, China;
    3. Key Laboratory of Animal Biotechnology of Xinjiang, Institute of Biotechnology, Xinjiang Academy of Animal Sciences, Urumqi 830011, China
  • Received:2023-05-15 Online:2023-12-05 Published:2023-11-28
  • Contact: 新疆自治区重点实验室开放课题(2020D04035);国家重点研发计划课题(2021YFD1200901);天山创新团队计划(2022D14018) E-mail:dijiang69@163.com
  • Supported by:
    The project was supported by the National Key Research and Development Program of China (2019YFC1905301);National Natural Science Foundation of China (22078115,21776108,21690083,22008078).

Abstract: Through long-term natural and artificial selection,sheep have developed a rich and diverse variety of breeds that provide humans with meat,milk,wool,fur and other living items.Selection is accompanied by the generation of selection signals,such as population differentiation,decreased genomic diversity and the presence of high-frequency alleles in regions with long-range extended haplotype purity in selected regions.For different types of selection signals,corresponding analysis methods have been derived,such as population differentiation-based analysis,genomic heterozygosity-based analysis,haplotype and linkage disequilibrium-based analysis,and allele frequency profile-based analysis.In recent years,with the development of high-throughput sequencing technology,researchers have been able to mine a large number of functional genes associated with economic traits by performing selection signal analysis in sheep,providing more genetic information for sheep molecular breeding.The author introduces the classification and further presents the advances in utilizing these methods to screen sheep functional genes,the prospects of application and research are predicated on selection signal analysis,which provides valuable information for further applied research of selection signal analysis in sheep genetic breeding.

Key words: sheep; selection signals; functional genes

CLC Number: