Time's arrow: heterochrony and the evolution of development.

Time's arrow: heterochrony and the evolution of development.
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时间之箭:异时性和发展的演变。

DOI:
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发表时间:
2003
影响因子:
0.7
通讯作者:
Kathleen K. Smith
Kathleen K. Smith
中科院分区:
生物学4区
文献类型:
--
作者:
Kathleen K. Smith

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异时性的概念表示进化中发育事件和过程的相对时间的变化,它伴随着将进化和发展联系起来的尝试已经超过了一个世纪。在此期间,异时性的定义和该概念的应用发生了变化,到20世纪90年代末,许多人质疑该概念的有用性。然而,在过去的十年中,异时性的研究已经振兴了一个新的重点发展序列,检查异时性明确的系统发育背景下,越来越多的趋势,检查异时性的许多种事件,包括细胞,分子和遗传事件。这些研究的例子在本文中进行了审查,它认为,这种新的应用heterochrony了解进化变化的发展基础提供了一个非常丰富的机会。
The concept of heterochrony, which denotes a change in the relative timing of developmental events and processes in evolution, has accompanied attempts to link evolution and development for well over a century. During this time the definition of heterochrony and the application of the concept have varied and by the late 1990's, many questioned the usefulness of the concept. However, in the past decade studies of heterochrony have been revitalized by a new focus on developmental sequence, an examination of heterochrony in explicit phylogenetic contexts and increasing tendencies to examine the heterochrony of many kinds of events, including cellular, molecular and genetic events. Examples of such studies are reviewed in this paper and it is argued that this new application of heterochrony provides an extraordinarily rich opportunity for understanding the developmental basis of evolutionary change.
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