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增长性能是由场地条件驱动的,并且在Quercus robur和Prunus avium中受到功能性特征可塑性的调节
Alessandro Di Fabio1, Samuel Aspalter2, Debojyoti Chakraborty2
1Institute of Botany and Landscape Ecology, University of Greifswald Greifswald Germany.
Ecology and evolution
|February 2, 2026
概括
树和桃树的功能特征显示出显著的遗传变异和可塑性. 尽管回应不大,但这些特征为适应气候变化和适应气候变化提供了潜力.
科学领域:
- 生态学和进化生物学
- 植物科学 植物科学
- 林业和林业 林业和林业
背景情况:
- 功能性特征调解了植物与环境的相互作用,但它们的可塑性和遗传变异性在长寿树木中尚不清楚.
- 了解这些特征对于预测物种对气候变化的反应至关重要.
研究的目的:
- 评估表型可塑性和遗传差异化在特定的叶面 (SLA) 和春季叶外在*Quercus robur* (树) 和*Prunus avium* (桃).
- 评估这些功能特征对跨越气候梯度的树木生长的影响.
主要方法:
- 利用来自 *Q. robur* 和 *P. avium* 的来源试验 (普通花园) 数据,在六个气候梯度为 ~2°C 的地区进行.
- 应用混合效应模型来区分来源,家族和地点对特征和生长的影响.
- 在不同水的可用性和温度下测试了特征与生长的关系.
主要成果:
- 增长性能主要取决于地点条件;SLA是最重要的功能特征.
- *P. avium*在SLA和叶子外出 (R2~7%) 中表现出适度的来源变化,而*Q. robur*在叶子外出 (R2~19%) 中表现出变化,表明遗传差异化.
- 在SLA和叶子外的可检测可塑性,但通常很小 (<10%的特征变异),具有高的个体间可变性 (R2~70%),气候或遗传学无法解释.
结论:
- 这两种物种都有适应气候变化的遗传潜力,这得益于适度但显著的可塑性.
- *P. avium*表现出气候敏感的叶子,典型的先驱物种,而*Q. robur*表现出较弱的塑性反应,但更高的遗传特征结构.
- 高的个体间变异性表明,超出可预测的遗传和塑性反应,具有相当大的适应能力.
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