A caseian point for the evolution of a diaphragm homologue among the earliest synapsids
A caseian point for the evolution of a diaphragm homologue among the earliest synapsids
复制标题
最早的突触动物隔膜同源物进化的凯斯点
DOI:
10.1111/nyas.13264
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发表时间:
2017
影响因子:
5.2
通讯作者:
S. F. Perry
中科院分区:
文献类型:
--
作者:
Lambertz;C. D. Shelton;F. Spindler;S. F. Perry
The origin of the diaphragm remains a poorly understood yet crucial step in the evolution of terrestrial vertebrates, as this unique structure serves as the main respiratory motor for mammals. Here, we analyze the paleobiology and the respiratory apparatus of one of the oldest lineages of mammal‐like reptiles: the Caseidae. Combining quantitative bone histology and functional morphological and physiological modeling approaches, we deduce a scenario in which an auxiliary ventilatory structure was present in these early synapsids. Crucial to this hypothesis are indications that at least the phylogenetically advanced caseids might not have been primarily terrestrial but rather were bound to a predominantly aquatic life. Such a lifestyle would have resulted in severe constraints on their ventilatory system, which consequently would have had to cope with diving‐related problems. Our modeling of breathing parameters revealed that these caseids were capable of only limited costal breathing and, if aquatic, must have employed some auxiliary ventilatory mechanism to quickly meet their oxygen demand upon surfacing. Given caseids’ phylogenetic position at the base of Synapsida and under this aquatic scenario, it would be most parsimonious to assume that a homologue of the mammalian diaphragm had already evolved about 50 Ma earlier than previously assumed.
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
R. Townson
通讯作者:
R. Townson
影响因子:
2.6
作者:
A. Williard
通讯作者:
A. Williard
DOI:
10.1644/836.1
发表时间:
2009-05-01
期刊:
Mammalian Species
影响因子:
--
作者:
Leslie, David M., Jr.;Schaller, George B.
通讯作者:
Schaller, George B.
DOI:
--
发表时间:
2012
影响因子:
1.2
作者:
Christen D. Shelton;P. Sander;Koen Stein;H. Winkelhorst
通讯作者:
H. Winkelhorst
DOI:
10.1111/j.1469-185x.2010.00137.x
发表时间:
2011-02
影响因子:
--
作者:
Sander PM;Christian A;Clauss M;Fechner R;Gee CT;Griebeler EM;Gunga HC;Hummel J;Mallison H;Perry SF;Preuschoft H;Rauhut OW;Remes K;Tütken T;Wings O;Witzel U
通讯作者:
Witzel U