Detection of polymorphisms in six genes and their association analysis with litter size in sheep
文献类型: 外文期刊
第一作者: Liu, Kai
作者: Liu, Kai;Liu, Yufang;Chu, Mingxing;Liu, Yufang;Chu, Mingxing
作者机构:
关键词: Sheep; litter size; single nucleotide polymorphisms; CLSTN2; CTH
期刊名称:ANIMAL BIOTECHNOLOGY ( 影响因子:3.7; 五年影响因子:3.3 )
ISSN: 1049-5398
年卷期: 2024 年 35 卷 1 期
页码:
收录情况: SCI
摘要: Litter size in sheep is a complex trait controlled by micro-effective polygenes. APAF1, CLSTN2, CTH, PLCB1, PLCB4, and CHST11 are all involved in mammalian reproduction. However, the effects of these genes on litter size in sheep are still unclear. Therefore, in this study, we used Sequenom MassARRAY (R) SNP assay technology to type the single nucleotide polymorphisms (SNPs) loci of six genes in five sheep breeds. The results showed that most sheep breeds contain three genotypes at each locus. Then, we conducted population genetic analysis on the SNPs of six genes and found that the polymorphic information content in all sheep breeds ranged from 0 to 0.37, and most sheep breeds were in Hardy-Weinberg equilibrium (p > 0.05). In addition, association analysis in Small Tail Han sheep indicated that the rs399534524 locus in CLSTN2 was highly associated with first parity litter size, and litter size in ewes with CT genotype was higher than that in ewes with CC genotype or TT genotype. Furthermore, the rs407142552 locus in CTH was highly associated with second parity litter size in Small Tail Han sheep, and litter size in ewes with CT genotype was higher than that in ewes with TT genotype. Finally, we predicted the CTH and CLSTN2 protein interaction network and found that HTR1E, NOM1, CCDC174 and ALPK3 interact with CLSTN2 and have been reported as candidate genes related to litter size in sheep. These results suggest that they may be useful genetic markers for increasing litter size in sheep.
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