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混合交配物种的共存同源会通过繁殖干扰影响遗传结构和自我发生率吗?

Koki R Katsuhara^1,2, Atushi Ushimaru³, Yuko Miyazaki⁴

¹Faculty of Environmental, Life, Natural Science and Technology, Okayama University, Tsushima-Naka 1-1-1, Kita-ku, Okayama, 700-8530, Japan. k.katsuhara0228@gmail.com.

|August 22, 2024

概括

竞争植物的繁殖干扰增加了Commelina communis f. ciliata.中的内生殖和自杀率. 然而,这种干扰并不限制基因流动,高自我可能会促进共存.

科学领域:

人口遗传学人口遗传学
植物进化生态学植物进化生态学
跨物种相互作用跨物种相互作用

背景情况:

生殖干扰,一种通过交配过程减少健康的相互作用,对人口遗传结构产生不明确的影响.
在开花植物中,自我授粉可能会减轻生殖干扰,可能会增加近亲繁殖和自我授粉率,同时限制基因流动.

研究的目的:

研究一种同源体对繁殖干扰如何影响Commelina communis f. ciliata.种群遗传结构.
评估生殖干扰对C. communis f. ciliata的内生系数,自生率和基因流动的影响.

主要方法:

使用混合交配草药中微卫星标记物的种群遗传学的分析Commelina communis f. ciliata.
对同情型和全情型种群之间的遗传结构进行比较,以检测生殖干扰的影响.

主要成果:

大多数C. communis f. ciliata种群表现出高的内生系数.
来自竞争对手的同胞的生殖干扰显著增加了同胞种群中的亲生繁殖系数和自杀率.
虽然全方位的种群表现出可变的自杀率,但相对的种群表现出极高的自杀率,这表明其他因素,如授粉者限制也可能参与其中.
生殖干扰并没有阻碍基因流动.

结论:

这项研究提供了对影响人口遗传结构的生殖干扰的第一个证据,特别是增加了近亲繁殖和自食.
尽管C. communis f. ciliata的繁殖干扰,但C. communis f. ciliata的高自杀率似乎有助于其与竞争中的同胞共存,尽管有繁殖干扰.
生殖干扰与高自杀率之间的直接因果关系需要进一步调查.

关键词:

科梅琳娜 (Commelina) 是一个美丽的城市.遗传多样性遗传多样性杂交系数的内在生殖系数混合交配是一种混合的交配方式.人口遗传学人口遗传学

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