Acta Veterinaria et Zootechnica Sinica ›› 2022, Vol. 53 ›› Issue (2): 381-390.doi: 10.11843/j.issn.0366-6964.2022.02.006

• ANIMAL GENETICS AND BREEDING • Previous Articles     Next Articles

Genome-wide Selection Signals Reveal Candidate Genes Associated with the Sheep of Hair Follicle Development and Depilation Traits

LEI Zhihui1, ZHANG Liping1*, ZHAO Hongchang2, ZHU Shaohua1, LU Zengkui2, GUO Tingting2, SUN Weibo2, HE Xue2, YUE Yaojing2*   

  1. 1. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
    2. Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
  • Received:2021-04-15 Online:2022-02-23 Published:2022-03-02

Abstract: In order to discover candidate genes related to hair follicle development and depilation traits, genome-wide selection signals were used to study the population structure and genetic differentiation of sheep with different wool types. In current study, the population of 290 sheep from 21 breeds with three types of wool was selected as research object, using Illumina Ovine SNP 50K microarrays genotyping data, based on Fst and θπ Ratio methods, the selection signal detection of hair sheep, fine wool sheep and medium wool sheep were detected. Apply the top 5% of Fst and θπ Ratio as the threshold to detect and annotate the strongly selected SNPs. The results showed that genes related to hair follicle development and hair loss traits such as SOX18, ALX4, FGF1 and LRP4 were strongly selected. In this study, two methods of Fst and θπ Ratio were adopted to detect important genes related to hair follicle development cycle, hair formation, and some cells of hair follicles and sebaceous glands. This will provide a meaningful reference for further research on the mechanism of important economic traits in sheep.

Key words: sheep, SNP chip, select signal, Fst, θπ Ratio

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