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用肠道微生物组特征作为相关的特征,对猪肉质量特征的多特征基因组预测

Francesco Tiezzi¹, Clint Schwab², Caleb Shull³

¹Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Florence, Italy.

Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie

|July 10, 2024

概括

将肠道微生物组数据与基因组信息相结合,可以改善对有价值的猪肉质量特征的遗传选择. 这种方法提供了一种具有成本效益的策略,用于加强养猪计划.

科学领域:

动物遗传学和动物繁殖
微生物组研究微生物组研究
农业科学农业科学

背景情况:

肉类质量特征在现代猪肉生产中至关重要,但对表型进行遗传评估是昂贵的.
基因组选择和使用更便宜的指标特征的间接选择是基因改进的既定方法.
肠道微生物组分析在动物育种应用中变得越来越容易获得和相关.

研究的目的:

调查肠道微生物信息作为选择猪肉质量的相关特征的实用性.
评估结合宿主基因组和肠道微生物群数据的有效性,以改善昂贵特征的遗传.

主要方法:

收集了关于三种生长阶段的肉质 (大理石,颜色,嫩度,腰肌,背部脂肪深度) 和肠道微生物群 (16S rRNA测序) 的表型数据.
在培训数据集上使用多特征模型估计的方差组件,包括与肉质特征相关的顶级操作分类单位 (OTU).
在一个验证集中,比较了具有不同数量的OTU的多特征模型与单特征模型的预测能力.

主要成果:

基因组信息为某些肉质特征提供了优势.
肠道微生物信息表明,对特定特征,特别是大理石和pH值有好处.
该研究证实了将微生物数据整合到育种计划中的潜力.

结论:

肠道微生物组数据可以成为一种有价值的相关性特征,用于改善猪中昂贵记录的肉质特征.
需要进一步研究微生物特征和宿主特征之间的共享遗传结构.
这项研究提出了一种实际的方法,可以利用肠道微生物组信息来增强猪养殖计划.

关键词:

尸体的组成尸体的组成对选择的相关反应.基因组选择基因组选择我们的肠道微生物组.肉质肉质肉质肉质

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