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种群大小作为交配系统和种群遗传差异化的一个主要决定因素,在一个狭窄的特有间隙植物群中

Boštjan Surina^1,2, Manica Balant^3,4, Peter Glasnović³

¹Natural History Museum Rijeka, Lorenzov prolaz 1, 51000, Rijeka, Croatia. bostjan.surina@prirodoslovni.com.

BMC plant biology

|August 8, 2023

概括

种群大小影响了Moehringia tommasinii的交配系统. 与M. muscosa的杂交会因为基因流动和潜在的本地灭绝而带来保护风险.

科学领域:

生态生态学生态生态学
进化生物学进化生物学
保护遗传学保护遗传学

背景情况:

交配系统在很大程度上影响了植物物种内部和植物物种之间的遗传结构.
在不同种群中研究了Moehringia tommasinii,一个狭窄的特有菌,及其亲属M. muscosa.
研究了这些物种之间的交配系统,基因流动和潜在的杂交.

研究的目的:

为了分析Moehringia tommasinii种群的交配系统变异.
为了评估基因流和杂交程度与同时发生的M. muscosa.
确定影响交配系统的因素和潜在的保护问题.

主要方法:

在M. tommasinii和M. muscosa之间进行互交交叉.
利用分子标记物来评估基因流动.
分析了近亲繁殖系数,种群大小,种子重量,花粉与卵子的比率以及花显示大小.

主要成果:

在M. tommasinii种群中观察到交配系统的显著变化.
种群大小与种子重量和花粉产量正相关.
有证据表明M. tommasinii和M. muscosa之间的杂交,导致M. tommasinii的本地灭绝.

结论:

种群大小是M. tommasinii的交配系统的一个关键决定因素.
软弱的生殖障碍和M. muscosa的基因流动带来了保护挑战.
杂交可能会导致本地灭绝,并破坏M. tommasinii的交配模式.

关键词:

查斯莫菲特植物 (Chasmophyte) 是一种状植物.保护遗传学保护遗传学花的形态学花的形态学杂交方式的混合化.内进侵权侵权是一种内进.配对系统的配对系统.微卫星是微观卫星中的一个.莫赫林加亚是什么意思授粉生物学的授粉生物学人口规模人口规模.自我症候群自我症综合征

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