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全基因组分析揭示了欧亚鱼的遗传学和人口史

Vitalii Lichman¹, Mikhail Ozerov^2,3,4, María-Eugenia López³

¹Institute of Veterinary Medicine and Animal Sciences, Chair of Aquaculture, Estonian University of Life Sciences, Tartu, Estonia.

Journal of fish biology

|June 19, 2024

概括

欧亚 (Perca fluviatilis) 的基因组分析揭示了由过去的气候变化塑造的独特的进化血统和人口历史. 这项研究澄清了整个欧亚大陆的人口结构和殖民路线.

科学领域:

进化生物学是进化的生物学.
人口遗传学人口遗传学
基因组学就是基因组学.

背景情况:

物种的分布和多样性受到进化和生态历史的影响.
遗传学和人口学分析,整合线粒体和核基因组,对于理解进化过程至关重要.

研究的目的:

调查欧洲和西伯利亚的欧亚 (Perca fluviatilis) 人口历史.
通过全基因组重新排序数据分析族群遗传学,族群地理学和人口史.
探索过去事件对P. fluviatilis种群遗传构成的影响.

主要方法:

来自欧洲和西伯利亚的P. fluviatilis种群的全基因组再测序.
使用线粒体 (mtDNA) 和核DNA进行了家族遗传学和家族地理学分析.
分析人口结构,混合物和人口统计轨迹.
将遗传数据与现有的基因组和转录组资源进行比较.

主要成果:

鉴定了五种高度分化的mtDNA血统,其中三种在波罗的海地区出现混合.
据估计,mtDNA谱系之间的分歧时间从0.24到142万年不等.
从欧洲和西伯利亚人口的核基因组推断出两个不同的人口轨迹 (大约. 在现在之前的3万到10万年).
mtDNA和核DNA分析之间的一致性和不一致性,表明最近的冰川后殖民和杂交.

结论:

全基因组数据有效地描述了塑造P. fluviatilis基因组的历史过程.
转录组资源补充了新的序列数据,以了解冰川避难所和重新殖民.
该研究强调了欧亚鱼复杂的人口历史,受四季气候波动和随后的范围扩张的影响.

关键词:

国家统一计划 (SNP) 是一个国家统一计划.人口学人口学人口学我们的mtDNA mtDNA 人类的基因组学.植物地理学植物地理学整个基因组测序的测序.

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