Climate and genome size shape the intraspecific variation in ecological adaptive strategies of a cosmopolitan grass species

IF 4.6 1区环境科学与生态学 Q1 ECOLOGY Functional Ecology Pub Date : 2024-07-05 DOI:10.1111/1365-2435.14613

Wen-Yong Guo, Jan Čuda, Hana Skálová, Carla Lambertini, Simon Pierce, Magdalena Lučanová, Hans Brix, Laura A. Meyerson, Petr Pyšek

引用次数: 0

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气候和基因组大小决定了世界性禾本科物种生态适应策略的种内差异

种内性状变异对达尔文的自然选择机制至关重要，人们已经对单一性状进行了广泛研究。然而，代表多种功能特征之间权衡的适应策略的种内变异却较少受到关注，尤其是对于全球分布或入侵物种而言。格里姆（Grime）的竞争者、压力耐受者和野草（CSR）方案在外来物种入侵的背景下得到了很好的验证，它为研究适应策略提供了理论和定量方法。在这里，我们量化了在一个普通花园中栽培的全球 89 种葭属植物基因型的种内 CSR 策略得分。我们评估了 CSR 策略得分的种内变异、基因组大小和原产地气候之间的关系，并检验了入侵品系和本地品系在 CSR 策略上是否存在差异。我们观察到了种内适应策略的巨大差异，主要表现为 C-选择和 S-选择。正如所预期的那样，C-、S-和R-分数显示出明显的纬度克线，并与基因组大小或原产地气候密切相关。此外，入侵品系比本地品系更能适应压力。我们得出的结论是，这种多年生湿地草的适应策略在全球范围内各不相同，其基因型在约150年前首次发现它的入侵地区竟然具有更强的应激耐受性。在期刊博客上免费阅读本文的通俗摘要。

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来源期刊

Functional Ecology 环境科学-生态学

CiteScore

9.00

自引率

1.90%

发文量

243

审稿时长

4 months

期刊介绍： Functional Ecology publishes high-impact papers that enable a mechanistic understanding of ecological pattern and process from the organismic to the ecosystem scale. Because of the multifaceted nature of this challenge, papers can be based on a wide range of approaches. Thus, manuscripts may vary from physiological, genetics, life-history, and behavioural perspectives for organismal studies to community and biogeochemical studies when the goal is to understand ecosystem and larger scale ecological phenomena. We believe that the diverse nature of our journal is a strength, not a weakness, and we are open-minded about the variety of data, research approaches and types of studies that we publish. Certain key areas will continue to be emphasized: studies that integrate genomics with ecology, studies that examine how key aspects of physiology (e.g., stress) impact the ecology of animals and plants, or vice versa, and how evolution shapes interactions among function and ecological traits. Ecology has increasingly moved towards the realization that organismal traits and activities are vital for understanding community dynamics and ecosystem processes, particularly in response to the rapid global changes occurring in earth’s environment, and Functional Ecology aims to publish such integrative papers.