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在全球农业杂草中,塑性介导的持久性和随后的局部适应

Ava J Garrison¹, Lauren A Norwood^1,2, Jeffrey K Conner¹

¹Kellogg Biological Station and Department of Plant Biology, Michigan State University, Hickory Corners, MI, United States.

Evolution; international journal of organic evolution

|July 13, 2024

概括

现型可塑性,生物体改变特征的能力,可能有助于像野卜这样的侵入性杂草殖民新的环境. 这种特征的灵活性可以先于遗传适应,促进在新的农业环境中成功建立.

科学领域:

进化生物学是进化的生物学.
生态生态学生态生态学
植物科学植物科学

背景情况:

现型可塑性对于人口在新环境中定居至关重要.
现型可塑性在实现后续适应性进化中的作用尚不清楚.
塑性介导进化的例子是有限的.

研究的目的:

研究塑性介导的持久性作为杂草Raphanus raphanistrum ssp.中的殖民机制. 拉法尼斯特姆. 拉法尼斯特姆.
将杂草种群与非杂草的本地种群进行比较,以确定塑性介导的持久性.
确定表型可塑性是否使农田的殖民成为可能.

主要方法:

在成长室内进行相互移植实验.
在杂草和本地生态型之间识别遗传差异化的特征.
在不同的生长室环境中评估表型可塑性.

主要成果:

大多数研究的特征都在杂草和本地生态型之间表现出遗传差异化和表型可塑性.
大多数特征表现出相同方向的可塑性和分化.
有证据表明,表型可塑性在新农业环境的殖民化中起着作用.

结论:

现型可塑性可能使杂草种群能够在新的农业环境中持续存在并殖民.
塑性可以在发生遗传适应之前促进种群的初始建立.
这项研究提供了塑性介导的持久性和随后的适应性的有限例子.

关键词:

适应性进化是适应性的进化.农业杂草农业杂草现型性可塑性现型性可塑性塑性介导的持久性是一种持久性.

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