Staying in situ or shifting range under ongoing climate change: A case of an endemic herb in the Himalaya-Hengduan Mountains across elevational gradients

doi:10.1111/ddi.13676

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	Staying in situ or shifting range under ongoing climate change: A case of an endemic herb in the Himalaya-Hengduan Mountains across elevational gradients
	Lin,Nan; Liu,Qun; Landis,Jacob B.; Rana,Hum Kala; Li,Zhimin; Wang,Hengchang; Sun,Hang; Deng,Tao
	2023
发表期刊	DIVERSITY AND DISTRIBUTIONS
ISSN	1472-4642
卷号	29 期号:4 页码:524-542
摘要	Aim: How species respond to ongoing climate change has been a hot research topic, especially with the controversy in shifting range (movement) or persisting in local habitat (in situ) as the primary response. Assessing the relative roles of range shifts, phenotypic plasticity and genetic adaptation helps us predict the evolutionary fate of species. We aim to explore the evolutionary strategies of plants under climate change from a keystone herb in alpine ecosystems, Mirabilis himalaica, along its elevational gradient.Location: Himalaya-Hengduan Mountains, China.Methods: We combined evidence from population genomics and ecological data in both space and time to investigate the state of staying or moving . We identified migration events by assessing historical and contemporary gene flow and changes in species distribution. Morphological variation was compared by measuring five traits using specimen data. Moreover, we explored climate-driven genetic variation and local selection regimes acting on populations in the alpine landscape along an elevational gradient.Results: Our results argue that staying in situ by morphological variation and local genetic evolution rather than range shifting plays an important role in M. himalaica response to climate change. We first found trace evidence of upward or climatic-driven shifting along an elevational gradient, although asymmetric gene flow was restricted within microenvironments of mid-elevational populations. Furthermore, morphological variation comparisons revealed clinal variation, as resource allocation showed a declining pattern in vegetative growth but increased reproductive growth with increasing elevation. Outlier tests and environment association analyses indicated adaptative loci primarily related to thermal-driven selection and continuous adaptations to high elevation in the Himalaya-Hengduan Mountains.Main Conclusions: Our findings show M. himalaica may persist in local habitats rather than shifting range under climate change, exhibiting a low risk of genomic vulnerability in current habitats. This study has important implications in improving our understanding of the evolutionary response in alpine plants to climate change.
关键词	adaptive evolution elevational gradients global climate change migration morphological variation RADseq HIGH-ALTITUDE ADAPTATION LOCAL ADAPTATION GENE FLOW PHENOTYPIC PLASTICITY EVOLUTIONARY RESPONSES RESOURCE-ALLOCATION POPULATION-GENETICS NICHE CONSERVATISM GENOMIC BASIS BIODIVERSITY
学科领域	Biodiversity & Conservation ; Environmental Sciences & Ecology
DOI	10.1111/ddi.13676
收录类别	SCI
WOS记录号	WOS:000923954700001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75267
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Lin,Nan,Liu,Qun,Landis,Jacob B.,et al. Staying in situ or shifting range under ongoing climate change: A case of an endemic herb in the Himalaya-Hengduan Mountains across elevational gradients[J]. DIVERSITY AND DISTRIBUTIONS,2023,29(4):524-542.
APA	Lin,Nan.,Liu,Qun.,Landis,Jacob B..,Rana,Hum Kala.,Li,Zhimin.,...&Deng,Tao.(2023).Staying in situ or shifting range under ongoing climate change: A case of an endemic herb in the Himalaya-Hengduan Mountains across elevational gradients.DIVERSITY AND DISTRIBUTIONS,29(4),524-542.
MLA	Lin,Nan,et al."Staying in situ or shifting range under ongoing climate change: A case of an endemic herb in the Himalaya-Hengduan Mountains across elevational gradients".DIVERSITY AND DISTRIBUTIONS 29.4(2023):524-542.

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