Association analysis of single nucleotide polymorphisms in the sheep FecB gene with reproductive and body size performance

Archives Animal Breeding Pub Date : 2024-02-15 DOI:10.5194/aab-67-81-2024

Lingchao Kong, Shuaitong Li, Yuan Pan, Jiaqi Li, Siyi Li, Yining Liu, Sibing Hou, Qingkun Liu, Yanjun Qiao, Yinggang Sun, Zeying Wang

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Abstract

Abstract. The FecB gene is one of those responsible for regulating reproductive traits in sheep. This experiment was designed to explore the impact of SNPs (single nucleotide polymorphisms) within the FecB gene on both the reproductive and body size performance of sheep. In this experiment, two SNP sites were identified as C413217T and A431965G. Through analysis of genetic diversity and correlations, we aimed to identify combinations of genotypes and haplotypes that influence reproductive performance and body size performance. The most prominent genotypes associated with lambing performance were identified as AA and CT, with the dominant haplotype combination being AACT. For body size performance, the dominant genotypes were AA and CC, while the dominant haplotype combination was AACC. These advantageous genotypes and haplotype combinations are conducive to promoting the selection and improvement of sheep breeds, advancing the progress of sheep genetic breeding, and providing theoretical support for the breeding of higher-fertility sheep.

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绵羊 FecB 基因单核苷酸多态性与繁殖和体型表现的关联分析

摘要FecB 基因是调控绵羊繁殖性状的基因之一。本实验旨在探讨 FecB 基因中的 SNPs（单核苷酸多态性）对绵羊繁殖和体型性能的影响。本实验确定了两个 SNP 位点，分别为 C413217T 和 A431965G。通过分析遗传多样性和相关性，我们旨在确定影响繁殖性能和体型性能的基因型和单倍型组合。与产羔性能相关的最主要基因型为 AA 和 CT，显性单倍型组合为 AACT。在体型表现方面，显性基因型为 AA 和 CC，显性单倍型组合为 AACC。这些优势基因型和单倍型组合有利于促进绵羊品种的选育和改良，推动绵羊遗传育种的进步，并为培育高繁殖力绵羊提供理论支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Archives Animal Breeding

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