Journal of Integrative Agriculture ›› 2023, Vol. 22 ›› Issue (7): 1967-1984.DOI: 10.1016/j.jia.2023.01.004

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  • 收稿日期:2022-07-28 修回日期:2023-01-16 接受日期:2022-12-28 出版日期:2023-07-20 发布日期:2022-12-28

Signatures of positive selection for local adaptation of African native cattle populations: A review

Wondossen AYALEW1, 2,  WU Xiao-yun1#, Getinet Mekuriaw TAREKEGN3, 4, CHU Min1, LIANG Chun-nian1, Tesfaye SISAY TESSEMA3, YAN Ping1#   

  1. Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, P.R.China

    Department of Animal Production and Technology, Wolkite University, Wolkite P.O. Box 07, Ethiopia

    Institute of Biotechnology, Addis Ababa University, Addis Ababa P.O. Box 1176, Ethiopia

    Scotland’s Rural College (SRUC), Roslin Institute Building, University of Edinburgh, Edinburgh, United Kingdom (UK)

  • Received:2022-07-28 Revised:2023-01-16 Accepted:2022-12-28 Online:2023-07-20 Published:2022-12-28
  • About author:#Correspondence YAN Ping, E-mail: pingyanlz@163.com; WU Xiao-yun, E-mail: wuxiaoyun@caas.cn
  • Supported by:
    The authors are grateful for the financial support by the Agricultural Science and Technology Innovation Program, China (CAAS-ASTIP-2014-LIHPS-01), the China Agriculture Research System of MOF and MARA (CARS- 37), the Foundation for Innovation, Groups of Basic Research in Gansu Province, China (20JR5RA580), and the Key Research and Development Programs of Science and Technology of Gansu Province, China (20YF8WA031) are duly acknowledged.

Abstract: Cattle are central to the lives and diverse cultures of African people. It has played a crucial role in providing valuable protein for billions of households and sources of income and employment for producers and other actors in the livestock value chains. The long-term natural selection of African cattle typically signals signatures in the genome, contributes to high genetic differentiations across breeds. This has enabled them to develop unique adaptive traits to cope with inadequate feed supply, high temperatures, high internal and external parasites, and diseases. However, these unique cattle genetic resources are threatened by indiscriminate cross-breeding, breed replacements with exotic cosmopolitan breeds, and climate change pressures. Although there are no functional genomics studies, recent advancements in genotyping and sequencing technologies have identified and annotated limited functional genes and causal variants associated with unique adaptive and economical traits of African cattle populations. These genome-wide variants serve as candidates for breed improvement and support conservation efforts for endangered cattle breeds against future climate changes. Therefore, this review plans to collate comprehensive information on the identified selection footprints to support genomic studies in African cattle to confirm the validity of the results and provide a framework for further genetic association and QTL fine mapping studies.

Key words: adaptive trait , African cattle ,  production traits ,  reproduction traits