面临深海采矿风险的高度结构化的copepod种群:将基因组数据与人口遗传和生物物理建模相结合

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Coral Diaz-Recio Lorenzo¹, Adrien Tran Lu Y², Otis Brunner³

¹Adaptation et Diversité en Milieu Marin (AD2M), Station Biologique de Roscoff, Sorbonne Université, CNRS, Roscoff, France.

Molecular ecology

|April 12, 2024

概括

深海足动物在盆地表现出高度结构化的种群,这表明幼虫的分散程度有限. 这凸显了保护这些脆弱的生物群免受潜在的采矿影响的必要性.

科学领域:

深海生物学深海生物学
人口基因组学是人口的基因组学.
海洋生态海洋生态学

背景情况:

足动物在深海的热水喷口中大量存在,对甲动物生物多样性做出了重大贡献.
尽管人们对海底大量硫化物开采感兴趣,但对于风口生物群没有人口基因组研究.

研究的目的:

进行第一个对风口动物群体的基因组研究,特别是Stygiopontius lauensis.
在盆地规模上调查人口结构,人口历史和基因型与环境的关联.
为了评估幼虫散播模型和通风copepods的生命历史特征.

主要方法:

限制部位相关的DNA测序 (2b-RADseq) 以获得全基因组的单核酸多态 (SNP).
分析了来自老盆地Stygiopontius lauensis种群的数千个SNP.
在基因组数据上应用幼虫分散模型.

主要成果:

在空间和时间尺度上观察到高度结构化的S. lauensis种群.
人口分歧发生在构造板块形成后 (~350公里),最近的二次接触 (<20公里).
幼虫分散模型准确地预测了观察到的种群结构和基因流动.

结论:

深海足种群显示出显著的遗传结构,与区域巨型动物研究不同.
在深海采矿影响评估中,需要特别考虑像copepods这样的小体生物.
基于区域的管理工具对于保护脆弱的风口生态系统免受采矿影响至关重要.

关键词:

连接性的连接性.它们是copepods,是copepods,是copepods.深海采矿是指深海采矿,深海采矿是指深海采矿.人口学人口学人口学热水发电口的喷气口是热水发电的.模拟幼虫分散的模型.

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