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昆虫授粉对大部分的血管精子的进化史

Ruby E Stephens^1,2, Rachael V Gallagher^1,3, Lily Dun^2,4

¹School of Natural Sciences, Macquarie University, Sydney, NSW, 2109, Australia.

The New phytologist

|June 5, 2023

概括

开花植物 (芽植物) 的祖先是昆虫授粉的,这种模式主导了它们86%的进化历史. 风传粉经常演变,特别是在开放息地,而脊椎动物传粉显示出更频繁的变化.

科学领域:

进化生物学进化生物学
植物学植物学
生态生态学生态生态学

背景情况:

今天,大多数开花植物 (芽植物) 都依赖昆虫的授粉.
然而,风,水和脊椎动物授粉也会发生,昆虫授粉可能是祖先的.
之前对血管精子授粉演变的评估还没有涵盖完整的类遗传.

研究的目的:

为了重建血种的祖先授粉模式.
量化与传粉转移相关的时间和环境因素在整个芽种的进化过程中.
为了提供一个概述的授粉宏观进化在angiosperms.

主要方法:

采用了强大的,历史悠久的植物谱系,涵盖了所有的血管精子家族.
纳入了1160种物种的物种级采样数据.
模拟了传粉系统的演变,使用了遗传学比较方法.

主要成果:

雄种类的祖先是昆虫授粉的,昆虫在它们的进化历史上约占了86%的授粉主导地位.
风传粉至少发生了42次的演变,很少有动物传粉的逆转.
脊椎动物授粉至少从昆虫授粉的祖先进化了39次,至少有26次逆转;它的概率与息地的开放性和距离赤道的距离相关.

结论:

昆虫授粉在苗中具有悠久而深刻的历史,这强调了昆虫与授粉者相互作用的持久重要性.
风力授粉的演变与息地开放等环境因素密切相关.
芽种中的授粉综合征显示出显著的进化可变性,特别是在昆虫和脊椎动物授粉模式之间.

关键词:

血管精子种子开花的植物开花的植物昆虫昆虫是一种昆虫.宏观生态学的宏观生态学宏观演变的发生.授粉授粉授粉授粉授粉综合征授粉综合征

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