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大西洋鱼的种群结构不支持基因上不同的繁殖成分

Alice Manuzzi¹, Imanol Aguirre-Sarabia¹, Natalia Díaz-Arce¹

¹AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain.

Open research Europe

|November 11, 2024

概括

大西洋鱼种群在西北大西洋,东北大西洋和地中海地区遗传上是不同的,但在这些地区缺乏单独的产卵组件,这驳斥了回归行为. 对这个商业上重要的鱼类来说,管理边界可能需要重新评估.

科学领域:

海洋生物学海洋生物学
人口遗传学人口遗传学
基因组学就是基因组学.

背景情况:

大西洋鱼 (Scomber scombrus) 是北大西洋和地中海的商业重要迁徙鱼.
了解种群结构对于有效管理这种物种至关重要.
以前的研究旨在定义管理单元并了解产品范围的扩展.

研究的目的:

测序和注释大西洋的基因组,以促进人口遗传研究.
研究大西洋种群之间的遗传差异化和连接性.
确定可能与适应和范围转移相关的基因组区域.

主要方法:

的基因组测序和注释 Scomber scombrus.
限制位置相关的测序 (RAD-seq) 用于SNP发现.
在物种范围内的500多个样本的基因定型.

主要成果:

为大西洋鱼生成了一个741Mb的参考基因组组.
确定了三个基因上不同的单位:西北大西洋,东北大西洋和地中海.
在西北或东北大西洋种群中没有发现遗传分离的产卵成分的证据.

结论:

这项研究证实,在大西洋主要鱼群中没有遗传分离的产卵成分.
这些发现驳斥了大西洋鱼的追踪行为假设.
结果表明,需要重新定义大西洋种群的管理边界.

关键词:

大西洋鱼大西洋鱼这就是RAD-seqq.一个完整的基因组.渔业管理渔业管理整个基因组的SNP是SNP.人口结构人口结构.

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