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在自由放牧的伊比利亚猪中,肉质和尸体组成的候选SNP

Patricia Palma-Granados¹, María Muñoz², Miguel A Delgado-Gutierrez¹

¹Centro de I+D en Cerdo Ibérico, INIA-CSIC, Ctra. EX101 km 4,7, 06300 Zafra, Spain; Dpto. Mejora Genética Animal, INIA-CSIC, Ctra La Coruña km 7,5, 28040 Madrid, Spain.

|October 31, 2023

概括

遗传标记可以提高伊比利亚猪肉的质量,而不会对尸体产量产生负面影响. 在PRKAG3,ACACA,FASN和CAST基因中的特定单核酸多态 (SNPs) 显示出繁殖计划的前景.

科学领域:

动物遗传学动物遗传学
畜牧养殖畜牧养殖畜牧养殖
肉类科学肉科学

背景情况:

与肉质特征相关的遗传标记是伊比利亚猪养殖计划的候选者.
评估这些单核酸多态 (SNP) 对优质切割产量的影响对于防止对抗性影响至关重要.

研究的目的:

评估26种多态性对伊比利亚猪中优质切片重量的影响.
为了确认这些SNP对肉类质量特征的影响,在一个更大的人口中.

主要方法:

收集和分析了大约1550头伊比利亚猪的表型数据.
进行了关联分析,以评估特定SNP对各种肉质和尸体特征的影响.

主要成果:

PRKAG3 SNPs (rs319678464C和rs1108399077G) 增加了剪切力,水损失和颜色值,同时降低了平均每日增益 (ADG).
卡斯特和ADIPOQ SNPs影响了肌内脂肪 (IMF) 含量,而ADIPOQ (rs3476515794T>G) 也影响了长胸和腰部 (LTL) 体重.
ELOVL6,FASN,MTTP和ACACA SNPs影响了脂肪酸概况,增加了油脂和单不和脂肪酸,同时减少了和脂肪酸. 发现暗示性关联与火腿,肩膀和LTL重量.
NR6A1 (rs326780270T) 增加了ADG,并倾向于减少火腿的重量.

结论:

在PRKAG3 (rs319678464G>C),ACACA,FASN和CAST基因中的SNP适合用于提高肉质的育种计划,而不会对尸体组成产生不利影响.
建议在较大的群体中对PRKAG3 (rs1108399077G>A),ELOVL6,MTTP和NR6A1中的SNP进行进一步测试.

关键词:

背部脂肪FAFA的背部脂肪国际货币基金组织国际货币基金组织国际货币基金组织伊比里亚猪 (Iberian pigs) 是一种葡萄牙猪.肉的质量肉的质量分子标记物分子标记物优质的切割重量优质的切割重量选择选择选择选择

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相关概念视频

Single Nucleotide Polymorphisms-SNPs

Single Nucleotide Polymorphisms-SNPs

A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...