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在红树林大黄蜂的范围边缘的不对称遗传群体结构

Kohei Hamamoto¹, Akira Iguchi², Kodai Gibu³

¹Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan; Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 7, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8567, Japan.

The Science of the total environment

|May 16, 2024

概括

红树林,Terebralia palustris,显示了非洲和日本之间共同的遗传单元型,表明尽管距离很远,但连接性很高. 边缘种群表现出独特的遗传多样性和结构,表明对气候变化的反应各不相同.

科学领域:

海洋生物学海洋生物学
人口遗传学人口遗传学
分子生态学分子生态学

背景情况:

海洋物种往往表现出广泛的地理分布,这由海洋流提供了便利.
有限的数据存在于广泛的海洋物种在生态区域的遗传连接.
了解人口结构对于保护和预测气候变化影响至关重要.

研究的目的:

为了研究Terebralia palustris种群的遗传结构和连接性.
为了比较非洲和日本人口之间的遗传多样性和差异化.
推断人口统计过程和海洋流对基因流动的潜在影响.

主要方法:

线粒体细胞氧化酶子单位I (COI) 的基因测序.
来自冲绳,日本和东非的序列的比较分析.
评估遗传多样性和人口差异化 (β-多样性).

主要成果:

非洲和日本的Terebralia palustris种群共享主要的单元型,没有明显的遗传差异化.
非洲核心人口的遗传多样性高于南非和日本人口.
日本北部的人口显示高化 (β_SNE),表明当代移民,而非洲南部的人口显示高周转率 (β_SIM),表明历史人口结构.

结论:

库罗西奥流可能会促进幼虫的散播,影响日本和非洲之间的遗传联系.
周边的T. palustris种群表现出不同的遗传模式,可能导致对气候变化的不同反应.
广泛分布的海洋物种可能通过海洋流保持连接,但边缘种群面临着独特的人口历史.

关键词:

基因的连接性基因的连接性遗传多样性遗传多样性遗传的β多样性遗传的β多样性边缘人口的边缘人口.这种植物是Terebralia palustris.

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