气候变化领域集成服务门户(CCPortal): Range-wide intraspecific variation reflects past adaptation to climate in a gypsophile Mediterranean shrub

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DOI	10.1111/1365-2745.14322
	Range-wide intraspecific variation reflects past adaptation to climate in a gypsophile Mediterranean shrub
	Blanco-Sanchez, Mario; Ramirez-Valiente, Jose Alberto; Ramos-Munoz, Marina; Pias, Beatriz; Franks, Steven J.; Escudero, Adrian; Matesanz, Silvia
发表日期	2024
ISSN	0022-0477
EISSN	1365-2745
英文摘要	Phenotypic differences among populations stem from the interaction between neutral and adaptive processes, and phenotypic plasticity. Although clinal trait variation along climatic gradients often evolves in widely distributed species, it is unknown whether substrate specialization, such as that of Mediterranean gypsum plants, has constrained adaptation to climate. Using a common garden experiment with two contrasting watering treatments, we quantified phenotypic plasticity, assessed evidence for footprints of selection using F-ST - Q(ST) comparisons, and evaluated the ecological factors driving genetically based phenotypic differentiation of 11 populations encompassing the full environmental range of the gypsum shrub Lepidium subulatum. We found evidence for genetic differentiation among populations related to climatic differences, with populations from warmer and drier sites showing lower specific leaf area and leaf N, earlier phenology, greater water use efficiency and greater fitness. Multiple lines of evidence suggest that this differentiation was driven by past divergent selection rather than neutral processes. All populations showed high phenotypic plasticity, indicating that plasticity has not been selected against, even in populations from sites with harsher climatic conditions. Synthesis. Our results indicate that despite strong substrate specialization, adaptive differentiation related to climatic gradients occurs in this species. However, we also found that populations from mesic sites may be particularly vulnerable to future climate change given their relatively lower fitness under both wet and dry conditions.
英文关键词	adaptive intraspecific variation; divergent evolution; gypsophiles; local adaptation; natural selection; phenotypic plasticity; population differentiation; Q(ST) - F-ST comparisons
语种	英语
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
WOS类目	Plant Sciences ; Ecology
WOS记录号	WOS:001220184800001
来源期刊	JOURNAL OF ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299819
作者单位	Universidad Rey Juan Carlos; Centro de Investigacion Ecologica y Aplicaciones Forestales (CREAF-CERCA); Complutense University of Madrid; Fordham University
推荐引用方式 GB/T 7714	Blanco-Sanchez, Mario,Ramirez-Valiente, Jose Alberto,Ramos-Munoz, Marina,et al. Range-wide intraspecific variation reflects past adaptation to climate in a gypsophile Mediterranean shrub[J],2024.
APA	Blanco-Sanchez, Mario.,Ramirez-Valiente, Jose Alberto.,Ramos-Munoz, Marina.,Pias, Beatriz.,Franks, Steven J..,...&Matesanz, Silvia.(2024).Range-wide intraspecific variation reflects past adaptation to climate in a gypsophile Mediterranean shrub.JOURNAL OF ECOLOGY.
MLA	Blanco-Sanchez, Mario,et al."Range-wide intraspecific variation reflects past adaptation to climate in a gypsophile Mediterranean shrub".JOURNAL OF ECOLOGY (2024).