气候变化领域集成服务门户(CCPortal): Functional consequences of convergently evolved microscopic skin features on snake locomotion

CCPortal

DOI	10.1073/pnas.2018264118
	Functional consequences of convergently evolved microscopic skin features on snake locomotion
	Rieser J.M.; Li T.-D.; Tingle J.L.; Goldman D.I.; Mendelson J.R.
发表日期	2021
ISSN	00278424
卷号	118 期号:6
英文摘要	The small structures that decorate biological surfaces can significantly affect behavior, yet the diversity of animal-environment interactions essential for survival makes ascribing functions to structures challenging. Microscopic skin textures may be particularly important for snakes and other limbless locomotors, where substrate interactions are mediated solely through body contact. While previous studies have characterized ventral surface features of some snake species, the functional consequences of these textures are not fully understood. Here, we perform a comparative study, combining atomic force microscopy measurements with mathematical modeling to generate predictions that link microscopic textures to locomotor performance. We discover an evolutionary convergence in the ventral skin structures of a few sidewinding specialist vipers that inhabit sandy deserts-an isotropic texture that is distinct from the head-to-tail-oriented, micrometer-sized spikes observed on a phylogenetically broad sampling of nonsidewinding vipers and other snakes from diverse habitats and wide geographic range. A mathematical model that relates structural directionality to frictional anisotropy reveals that isotropy enhances movement during sidewinding, whereas anisotropy improves movement during slithering via lateral undulation of the body. Our results highlight how an integrated approach can provide quantitative predictions for structure-function relationships and insights into behavioral and evolutionary adaptations in biological systems. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Evolution; Function; Locomotion; Snake; Structure
语种	英语
scopus关键词	anisotropy; article; atomic force microscopy; biology; comparative study; controlled study; convergent evolution; desert; evolutionary adaptation; habitat; locomotion; nonhuman; prediction; quantitative analysis; skin structure; spike; structure activity relation; Viperinae
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180741
作者单位	Department of Physics, Emory University, Atlanta, GA 30322, United States; School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, United States; Advanced Science Research Center at Graduate Center, City University of New York, New York, NY 10031, United States; Department of Physics, City College of New York, City University of New York, New York, NY 10031, United States; Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, CA 92521, United States; School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, United States; Department of Research, Zoo Atlanta, Atlanta, GA 30315, United States
推荐引用方式 GB/T 7714	Rieser J.M.,Li T.-D.,Tingle J.L.,et al. Functional consequences of convergently evolved microscopic skin features on snake locomotion[J],2021,118(6).
APA	Rieser J.M.,Li T.-D.,Tingle J.L.,Goldman D.I.,&Mendelson J.R..(2021).Functional consequences of convergently evolved microscopic skin features on snake locomotion.Proceedings of the National Academy of Sciences of the United States of America,118(6).
MLA	Rieser J.M.,et al."Functional consequences of convergently evolved microscopic skin features on snake locomotion".Proceedings of the National Academy of Sciences of the United States of America 118.6(2021).