RECONSIDERATION OF PHYLOGENY OF TETRAPOD HEART
RECONSIDERATION OF PHYLOGENY OF TETRAPOD HEART
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DOI：
10.1002/jmor.1051470207
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发表时间：
1975-01-01
影响因子：
1.5
通讯作者：
HOLMES, EB
中科院分区：
文献类型：
--
作者：
HOLMES, EB
在解剖了各种脊椎动物的心脏并广泛查阅文献后，我得出了一些与文献中普遍表达的观点不同的关于四足动物心脏系统发育的结论。在两栖动物中，室间隔的缺失很可能是一种原始特征（而不是一种缺失）。鳄鱼和鸟类的完整室间隔可能主要是从典型的（非鳄鱼）爬行动物心脏的主要水平室间隔进化而来的，其中较小的部分代表了一种新的发展。哺乳动物的室间隔也可能主要是从爬行动物的水平室间隔进化而来的。没有理由假设哺乳动物的心脏和主动脉弓直接从前爬行动物阶段进化而来，这通常是假设的。给出了这些结论所依据的证据。
After dissecting a variety of vertebrate hearts and extensively reviewing the literature, I have drawn some conclusions concerning the phylogeny of the tetrapod heart that differ from commonly expressed viewpoints in the literature. It is probable that the absence of an interventricular septum in amphibians is a primitive feature (rather than representing a loss). The complete interventricular septum of crocodilians and birds probably evolved primarily from the major horizontal septum of the typical (noncrocodilian) reptilian heart, with a smaller part representing a new development. The interventricular septum of mammals probably also evolved primarily from the reptilian horizontal septum. There is no reason to assume that the mammalian heart and aortic arches evolved directly from a pre‐reptilian stage, as is often assumed. The evidence upon which these conclusions are based is given.