Shared extremes by ectotherms and endotherms: Body elongation in mustelids is associated with small size and reduced limbs

Shared extremes by ectotherms and endotherms: Body elongation in mustelids is associated with small size and reduced limbs
复制标题

变温动物和恒温动物的共同极端:鼬科动物的身体伸长与体型小和四肢减少有关

DOI:
10.1111/evo.13702
复制
发表时间:
2019
期刊:
影响因子:
3.3
通讯作者:
Mehta, Rita S.
Mehta, Rita S.
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Law, Chris J.;Slater, Graham J.;Mehta, Rita S.

文献摘要

参考文献

被引文献

相似文献

在许多变温脊椎动物谱系中,四肢减少或缺失的细长身体已经独立进化。尽管人们花费了大量精力来研究这些进化枝中伸长的形态途径,但缺乏对吸热进化枝中伸长进化的定量研究。我们使用头体伸长比对 61 种鼬类哺乳动物(小熊猫、臭鼬、浣熊和黄鼠狼)的体形进行了量化。我们还研究了可能是向更极端的身体结构进化的基础的形态变化。我们发现,由 Helictidinae、Guloninae、Ictonychinae、Mustelinae 和 Lutrinae 亚科组成的鼬科分支表现出向更细长身体的进化过渡。此外,我们发现身体的伸长与其他关键特征的进化有关,例如身体尺寸的减小和前肢长度的减小,但与后肢长度的减小无关。哺乳动物的身体伸长和前肢长度之间的这种关系以前尚未定量确定,但与变温脊椎动物所表现出的趋势一致,并表明与体形进化相关的性状协方差的常见模式。这项研究提供了记录更广泛的哺乳动物进化枝的身体形状的框架,以更好地了解影响所有脊椎动物形状差异的形态变化。
An elongate body with reduced or absent limbs has evolved independently in many ectothermic vertebrate lineages. While much effort has been spent examining the morphological pathways to elongation in these clades, quantitative investigations into the evolution of elongation in endothermic clades are lacking. We quantified body shape in 61 musteloid mammals (red panda, skunks, raccoons, and weasels) using the head-body elongation ratio. We also examined the morphological changes that may underlie the evolution toward more extreme body plans. We found that a mustelid clade comprised of the subfamilies Helictidinae, Guloninae, Ictonychinae, Mustelinae, and Lutrinae exhibited an evolutionary transition toward more elongate bodies. Furthermore, we discovered that elongation of the body is associated with the evolution of other key traits such as a reduction in body size and a reduction in forelimb length but not hindlimb length. This relationship between body elongation and forelimb length has not previously been quantitatively established for mammals but is consistent with trends exhibited by ectothermic vertebrates and suggests a common pattern of trait covariance associated with body shape evolution. This study provides the framework for documenting body shapes across a wider range of mammalian clades to better understand the morphological changes influencing shape disparity across all vertebrates.
DOI: 10.1371/journal.pone.0112732
发表时间: 2014
期刊: PloS one
影响因子: 3.7
作者:
Claverie T;Wainwright PC
通讯作者: Wainwright PC
细长鱼类轴向图案的演变
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
A. B. Ward;E. Brainerd
通讯作者: E. Brainerd
体节数量和脊椎动物进化。
DOI: --
发表时间: 1998
期刊: Development
影响因子: 4.6
作者:
M. Richardson;S. Allen;G. Wright;A. Raynaud;J. Hanken
通讯作者: J. Hanken
海獭的新陈代谢和体温调节
DOI: --
发表时间: 1974
期刊: Physiological Zoology
影响因子: --
作者:
P. Morrison;M. Rosenmann;J. Estes
通讯作者: J. Estes
DOI: --
发表时间: 1981
期刊:
影响因子: --
作者:
S. Erlinge
通讯作者: S. Erlinge