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Polymorphism of SYNE2 Gene and its Association with Litter Size in Small Tail Han Sheep

文献类型： 外文期刊

作者： Tian, Zhilong 1 ; Wang, Yuqin 2 ; Tang, Jishun 1 ; Chu, Mingxing 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Anim Sci, Minist Agr & Rural Affairs, Key Lab Anim Genet & Breeding & Reprod, Beijing 100193, Peoples R China

2.Henan Univ Sci & Technol, Coll Anim Sci & Technol, Luoyang 471003, Henan, Peoples R China

3.Anhui Acad Agr Sci, Inst Anim Husb & Vet Med, Hefei 230031, Peoples R China

关键词： Sheep; SYNE2 gene; SNP; Genotyping; Litter size

期刊名称：PAKISTAN JOURNAL OF ZOOLOGY （ 影响因子：0.831； 五年影响因子：0.768 ）

ISSN： 0030-9923

年卷期： 2021 年 53 卷 2 期

页码：

收录情况： SCI

摘要： To elucidate the association between polymorphism of SYNE2 and litter size in sheep and provide a new locus for marker-assisted selection of high fecundity traits in sheep. A total of 384 small tail han sheep (STH) were sampled to detect single nucleotide polymorphism (SNP), and Sequenom Mass ARRAY (R) SNP assay was applied to genotype SNP loci of the SYNE2 gene. In this study, four SNPs were identified and that SNPs were identified that involved in amino acid changes. Population genetic analysis indicated that SYNE2 gene g.73310578G>A, g.73312791A>G showed moderate polymorphism (0.25A and g.73312791A>G loci were closely linked in STH (r(2) > 0.33). Association analysis results showed that g.73310578G>A and g.73312791A>G SNPs significantly affected litter size (P < 0.05). In addition, the litter size of individuals with the combined genotype AA/AG was greater than that of individuals with AA/GG, GA/AG, and GG/AA genotypes in the third parity (P < 0.05). In summary, the SYNE2 gene had a positive influence on the litter size of STH sheep. The linkage of g.73310578G>A and g.73312791A>G could be used in the marker-assisted selection of the litter size of STH.

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