The adaptational strategies of the hindlimb muscles in the Tenrecidae species including the aquatic web-footed tenrec (Limnogale mergulus)
The adaptational strategies of the hindlimb muscles in the Tenrecidae species including the aquatic web-footed tenrec (Limnogale mergulus)
复制标题
DOI：
10.1016/j.aanat.2005.12.005
复制
发表时间：
2006-07-01
影响因子：
2.2
通讯作者：
Hasegawa, Masami
中科院分区：
文献类型：
--
作者：
Endo, Hideki;Yonezawa, Takahiro;Hasegawa, Masami
对四种Tenrecidae（Oryzoryctinae：Tatazac long-tailed tenrec and web-footed tenrec，Tenrecinae：lesser hedgehog tenrec，and streaked tenrec）的后肢肌肉进行了肉眼观察。Oryzoryctinid物种的肌肉与身体的重量比大于Tenrecinae的肌肉与身体的重量比，因为从进化的角度来看，Oryzoryctinae物种的身体明显较小。首先，可以指出，两个亚科之间的身体大小的适应是不同的，其次，每个亚科内的运动功能的适应是完整的。体重数据和形态学研究结果表明，蹼足马鲛具有非常大的M。半膜的Talazac tong-tailed tenrec相比，在其重量比。这肌肉可能作为一个强大的屈肌运动在膝关节期间的水运动的蹼足tenrec。由于其他肌肉的蹼足马鲛是类似的Tatazac长尾马鲛的重量比数据，我们认为蹼足马鲛可能已经从陆地祖先，如长尾马鲛。在Tenrecinae中，条纹Tenrec配备有较大的Mm。semimbranosus和M.小腿三头肌比小刺猬tenrec。该物种适应于穴居生活，其起源于多刺藤壶进化线内的非特化祖先。(c)2006年Elsevier GmbH。All rights reserved.
The hindlimb muscles in four species of Tenrecidae (Oryzoryctinae: Tatazac long-tailed tenrec and web-footed tenrec, Tenrecinae: lesser hedgehog tenrec, and streaked tenrec), were examined macroscopically. The weight ratios of the muscles to the body in the oryzoryctinid species are larger than those in Tenrecinae, since the Oryzoryctinae species have an obviously smaller body from the evolutionary point of view. It can be primarily pointed out that the adaptation of the body size is different between the two subfamilies, and secondarily, that functional adaptation to locomotion is complete within each subfamily. The weight data and the morphological findings demonstrate that the web-footed tenrec possesses an extraordinary large M. semimembranosus in comparison to the Talazac tong-tailed tenrec in their weight ratios. This muscle may act as a strong flexor motor in the knee joint during the aquatic locomotion of the web-footed tenrec. Since the other muscles of the web-footed tenrec are similar to those of the Tatazac long-tailed tenrec regards weight ratio data, we think that the web-footed tenrec may have derived from a terrestrial ancestor such as the long-tailed tenrecs. In Tenrecinae the streaked tenrec is equipped with larger Mm. adductores, M. semimembranosus and M. triceps surae than the lesser hedgehog tenrec. This species is adapted to fossorial life derived from non-specialized ancestors within the evolutionary Lines of the spiny tenrecs. (c) 2006 Elsevier GmbH. All rights reserved.