文献类型： 外文期刊
作者： Akhmet, Nazar 1 ; Zhu, Leijing 1 ; Song, Jiajun 1 ; Akhatayeva, Zhanerke 2 ; Zhang, Qingfeng 3 ; Su, Peng 4 ; Li, Ran 1 ; Pan, Chuanying 1 ; Lan, Xianyong 1 ;
作者机构： 1.Northwest A&F Univ, Coll Anim Sci & Technol, Key Lab Anim Genet Breeding & Reprod Shaanxi Prov, Yangling 712100, Peoples R China
2.Kazakh Sci Res Inst Anim Husb & Fodder Prod, Sci Res Inst, Sheep Breeding Branch, Mynbaev 040622, Kazakhstan
3.Tianjin Aoqun Sheep Ind Acad Co, Tianjin 300000, Peoples R China
4.Chinese Acad Agr Sci CAAS, Inst Anim Sci, Natl Germplasm Ctr Domest Anim Resources, Beijing 100193, Peoples R China
关键词： sheep; the MAST4 gene; insertion/deletion; litter size
期刊名称：ANIMALS （ 影响因子：3.0； 五年影响因子：3.2 ）
ISSN： 2076-2615
年卷期： 2024 年 14 卷 4 期
页码：
收录情况： SCI
摘要： The economic efficiency of sheep breeding can be improved by enhancing sheep productivity. A recent genome-wide association study (GWAS) unveiled the potential impact of the MAST4 gene on prolificacy traits in Australian White sheep (AUW)). Herein, whole-genome sequencing (WGS) data from 26 different sheep breeds worldwide (n = 1507), including diverse meat, wool, milk, or dual-purpose sheep breed types from China, Europe, and Africa, were used. Moreover, polymerase chain reaction (PCR) genotyping of the MAST4 gene polymorphisms in (n = 566) Australian white sheep (AUW) was performed. The 3 identified polymorphisms were not homogeneously distributed across the 26 examined sheep breeds. Findings revealed prevalent polymorphisms (P3-ins-29 bp and P6-del-21 bp) with varying frequencies (0.02 to 0.97) across 26 breeds, while P5-del-24 bp was presented in 24 out of 26 breeds. Interestingly, the frequency of the P3-ins-29 bp variant was markedly higher in Chinese meat or dual-purpose sheep breeds, while the other two variants also showed moderate frequencies in meat breeds. Notably, association analysis indicated that all InDels were associated with AUW sheep litter size (p < 0.05). These results suggest that these InDels within the MAST4 gene could be useful in marker-assisted selection in sheep breeding.
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