Low morphological disparity and decelerated rate of limb size evolution close to the origin of birds

doi:10.1038/s41559-023-02091-z

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	Low morphological disparity and decelerated rate of limb size evolution close to the origin of birds
	Wang, Min; Zhou, Zhonghe
	2023-06-05
发表期刊	NATURE ECOLOGY & EVOLUTION
ISSN	2397-334X
卷号	7 期号:0 页码:1257-1266
摘要	Analysing patterns of morphological disparity and the evolutionary rate of appendicular limbs across theropods, the authors show lower disparity and decelerated rates of forelimb size evolution, which may have been caused by restrictions on morphospace given the requirements for powered flight. The origin of birds from theropod dinosaurs involves many changes in musculoskeletal anatomy and epidermal structures, including multiple instances of convergence and homology-related traits that contribute to the refinement of flight capability. Changes in limb sizes and proportions are important for locomotion (for example, the forelimb for bird flight); thus, understanding these patterns is central to investigating the transition from terrestrial to volant theropods. Here we analyse the patterns of morphological disparity and the evolutionary rate of appendicular limbs along avialan stem lineages using phylogenetic comparative approaches. Contrary to the traditional wisdom that an evolutionary innovation like flight would promote and accelerate evolvability, our results show a shift to low disparity and decelerated rate near the origin of avialans that is largely ascribed to the evolutionarily constrained forelimb. These results suggest that natural selection shaped patterns of limb evolution close to the origin of avialans in a way that may reflect the winged forelimb 'blueprint' associated with powered flight.
DOI	10.1038/s41559-023-02091-z
关键词[WOS]	R PACKAGE ; FLIGHT ; BODY ; PHYLOGENIES ; INNOVATION ; RADIATION ; THEROPODA ; INDEX ; TIME
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences[ZDBS-LY-DQC002] ; National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42225201] ; Key Research Program of Frontier Sciences ; Tencent Foundation (through the XPLORER PRIZE)
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:001000901400005
出版者	NATURE PORTFOLIO
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22689
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Wang, Min
作者单位	Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Min,Zhou, Zhonghe. Low morphological disparity and decelerated rate of limb size evolution close to the origin of birds[J]. NATURE ECOLOGY & EVOLUTION,2023,7(0):1257-1266.
APA	Wang, Min,&Zhou, Zhonghe.(2023).Low morphological disparity and decelerated rate of limb size evolution close to the origin of birds.NATURE ECOLOGY & EVOLUTION,7(0),1257-1266.
MLA	Wang, Min,et al."Low morphological disparity and decelerated rate of limb size evolution close to the origin of birds".NATURE ECOLOGY & EVOLUTION 7.0(2023):1257-1266.

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