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D Ciccarelli^1,2, C Bona³, A Carta^1,2

¹Department of Biology, University of Pisa, Pisa, Italy.

Plant biology (Stuttgart, Germany)

|July 10, 2023

概括

叶子经济谱 (LES) 和根经济谱 (RES) 之间的协调因环境梯度而异. 植物特征变异受环境压力影响,在物种之间表现出类似的适应,不论其系遗传关系如何.

科学领域:

生态生态学生态生态学
植物生物学植物生物学
进化生物学进化生物学

背景情况:

植物的功能特征是生态系统功能的关键,研究往往侧重于地面特征 (叶子经济谱,LES).
在LES和地下特征 (根经济频谱,RES) 之间的协调仍在争论中,特别是在环境梯度上.
遗传学关系可以影响特征协调和权衡,影响整个植物的策略.

研究的目的:

研究沿海岸线-内陆梯度沿海沙丘植物物种中LES和RES之间的协调.
检查环境梯度和植物遗传关系如何塑造植物特征光谱.
了解与地面和地下特征相关的生态策略的变化.

主要方法:

研究了39种物种的叶子和根的特征,分布在三个沿海沙丘息地 (前面,后面,松).
采用了家族遗传学比较框架来分析特征光谱和协调.
评估特征变化及其与沿环境梯度的生态策略的关系.

主要成果:

两维光谱捕获了每个息地内的大多数特征变异,其中植物遗传关系的影响适度.
在所有息地,地面上的特征始终支持 LES.
地下特征与RES仅在较少受约束的后方息地保持一致,在那里观察到整个植物谱 (PES).

结论:

在具有多重压力的环境中,LES和RES之间的协调是复杂的.
环境约束驱使物种之间类似的特征适应,无论进化历史如何.
遗传学关系在特征协调和特定息地内的权衡中起到适度的作用.

关键词:

沿海的沙丘植物生长.在PCA中,PCA是PCA.遗传学上的比较方法.植物的功能特征植物的功能特征

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