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东部的化后果:来自全基因组分析的见解

Honggang Zhao^1,2, Ximing Guo³, Wenlu Wang⁴

¹Department of Natural Resources & the Environment Cornell University Ithaca New York USA.

Evolutionary applications

|May 31, 2024

概括

由于水产养殖中的选择性繁殖,化导致东部的快速遗传变化. 这些通过SNP分析识别的基因组转变突出显示了对培养环境的适应以及对野生种群的潜在影响.

科学领域:

水产养殖的基因组学
进化生物学是进化的生物学.
海洋科学海洋科学

背景情况:

水产养殖中的选择性繁殖迅速改善了高生殖率物种的生产特征.
了解从选择中产生的遗传变化有助于对逃脱水产养殖品种的适应性研究和适应性预测.
家庭化被假设为一种由标准化培养环境中的无意选择驱动的遗传变化.

研究的目的:

为了测试与野生种群相比,在独立的东部 (Crassostrea virginica) 选择线上是否存在并行化效应.
为了确定与水产养殖中的化相关的遗传变化和候选位点.
评估化的基因组后果,包括差异化,多样性和链接不平衡.

主要方法:

利用600K SNP数组对多个独立选择线和东部的原始野生种群进行基因型.
进行了人口结构分析,以比较野生,养殖和混合群体之间的遗传差异化.
应用异常值测试和随机森林分析,对比野生与精选菌株,以确定正在选择中的候选SNP.

主要成果:

种群结构分析显示,从[野生-野生]<[野生-养殖]<[养殖-养殖]中,差异越来越大.
基因组扫描发现了1174个候选SNP与适应囚禁环境相关.
在为细胞骨功能丰富的基因中发现了具有高分辨能力的37个异常SNP,这表明在幼虫或定居点特征上的选择.

结论:

基于化场的东部种植导致了快速的基因组变化.
识别了在独立的水产养殖菌株中显示平行化反应的候选基点.
开发的基因组资源可以监测养殖和野生之间的杂交.

关键词:

水产养殖的水产养殖囚禁时间囚禁时间化化化化进化演化演化演化演化演化演化演化亲生繁殖是一种繁殖方式.一个的.

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