干旱区生态环境知识资源中心(Arid): Divergence in Plant Traits and Increased Modularity Underlie Repeated Transitions Between Low and High Elevations in the Andean GenusLeucheria

Arid

DOI	10.3389/fpls.2020.00714
	Divergence in Plant Traits and Increased Modularity Underlie Repeated Transitions Between Low and High Elevations in the Andean GenusLeucheria
	Perez, Fernanda; Lavandero, Nicolas; Gloria Ossa, Carmen; Felipe Hinojosa, Luis; Jara-Arancio, Paola; Kalin Arroyo, Mary T.
通讯作者	Perez, F
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2020
卷号	11
英文摘要	Understanding why some plant lineages move from one climatic region to another is a mayor goal of evolutionary biology. In the southern Andes plant lineages that have migrated along mountain ranges tracking cold-humid climates coexist with lineages that have shifted repeatedly between warm-arid at low elevations and cold habitats at high elevations. Transitions between habitats might be facilitated by the acquisition of common traits favoring a resource-conservative strategy that copes with drought resulting from either low precipitation or extreme cold. Alternatively, transitions might be accompanied by phenotypic divergence and accelerated evolution of plant traits, which in turn may depend on the level of coordination among them. Reduced integration and evolution of traits in modules are expected to increase evolutionary rates of traits, allowing diversification in contrasting climates. To examine these hypotheses, we conducted a comparative study in the herbaceous genusLeucheria.We reconstructed ancestral habitat states using Maximum Likelihood and a previously published phylogeny. We performed a Phylogenetic Principal Components Analysis on traits, and then we tested the relationship between PC axes, habitat and climate using Phylogenetic Generalized Least Squares (PGLS). Finally, we compared the evolutionary rates of traits, and the levels of modularity among the three main Clades ofLeucheria. Our results suggest that the genus originated at high elevations and later repeatedly colonized arid-semiarid shrublands and humid-forest at lower elevations. PGLS analysis suggested that transitions between habitats were accompanied by shifts in plant strategies: cold habitats at high elevations favored the evolution of traits related to a conservative-resource strategy (thicker and dissected leaves, with high mass per area, and high biomass allocation to roots), whereas warm-arid habitats at lower elevations favored traits related to an acquisitive-resource strategy. As expected, we detected higher levels of modularity in the clades that switched repeatedly between habitats, but higher modularity was not associated with accelerated rates of trait evolution.
英文关键词	climatic niche lability coordinated evolution evolutionary rates plant traits high Andes modularity phenotypic integration
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000542984300001
WOS关键词	PHYLOGENETIC SIGNAL ; ECONOMICS SPECTRUM ; NICHE CONSERVATISM ; ADAPTIVE RADIATION ; LEAF-AREA ; EVOLUTION ; INTEGRATION ; HISTORY ; CLIMATE ; DIVERSIFICATION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324834
作者单位	[Perez, Fernanda; Lavandero, Nicolas; Gloria Ossa, Carmen] Pontificia Univ Catolica Chile, Fac Ciencias Biol, Dept Ecol, Santiago, Chile; [Perez, Fernanda; Felipe Hinojosa, Luis; Jara-Arancio, Paola; Kalin Arroyo, Mary T.] Inst Ecol & Biodivers, Santiago, Chile; [Gloria Ossa, Carmen] Univ Valparaiso, Fac Ciencias, Inst Biol, Santiago, Chile; [Felipe Hinojosa, Luis; Kalin Arroyo, Mary T.] Univ Chile, Fac Ciencias, Dept Ciencias Ecol, Santiago, Chile; [Jara-Arancio, Paola] Univ Andres Bello, Fac Ciencias Vida, Dept Ciencias Biol, Santiago, Chile; [Jara-Arancio, Paola] Univ Andres Bello, Fac Ciencias Vida, Dept Ecol & Biodivers, Santiago, Chile
推荐引用方式 GB/T 7714	Perez, Fernanda,Lavandero, Nicolas,Gloria Ossa, Carmen,et al. Divergence in Plant Traits and Increased Modularity Underlie Repeated Transitions Between Low and High Elevations in the Andean GenusLeucheria[J],2020,11.
APA	Perez, Fernanda,Lavandero, Nicolas,Gloria Ossa, Carmen,Felipe Hinojosa, Luis,Jara-Arancio, Paola,&Kalin Arroyo, Mary T..(2020).Divergence in Plant Traits and Increased Modularity Underlie Repeated Transitions Between Low and High Elevations in the Andean GenusLeucheria.FRONTIERS IN PLANT SCIENCE,11.
MLA	Perez, Fernanda,et al."Divergence in Plant Traits and Increased Modularity Underlie Repeated Transitions Between Low and High Elevations in the Andean GenusLeucheria".FRONTIERS IN PLANT SCIENCE 11(2020).