Complex Homology and the Evolution of Nervous Systems.
Complex Homology and the Evolution of Nervous Systems.
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复杂的同源性和神经系统的进化。
DOI：
10.1016/j.tree.2015.12.005
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发表时间：
2016
影响因子：
16.8
通讯作者：
Hofmann,HansA
中科院分区：
文献类型：
--
作者：
Liebeskind,BenjaminJ;Hillis,DavidM;Zakon,HaroldH;Hofmann,HansA
我们研究了动物神经系统的复杂进化，并讨论了这种复杂性的后果，以推断早期动物的性质。虽然重建神经系统的起源仍然是生物学的一个核心挑战，早期动物的表型复杂性仍然存在争议，但一个令人信服的画面正在出现。我们现在知道，神经系统和其他关键的动物创新包含了很大程度的同质性，至少在分子水平上。关于早期神经系统进化的假设之所以不成立，主要是因为对这种同源性的解释不同。我们强调需要明确讨论的假设，并讨论了目前的方法推断古代表型状态的局限性。
We examine the complex evolution of animal nervous systems and discuss the ramifications of this complexity for inferring the nature of early animals. Although reconstructing the origins of nervous systems remains a central challenge in biology, and the phenotypic complexity of early animals remains controversial, a compelling picture is emerging. We now know that the nervous system and other key animal innovations contain a large degree of homoplasy, at least on the molecular level. Conflicting hypotheses about early nervous system evolution are due primarily to differences in the interpretation of this homoplasy. We highlight the need for explicit discussion of assumptions and discuss the limitations of current approaches for inferring ancient phenotypic states.