Tickle Cheryll
Division of Cell & Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK.
J Morphol. 2002 Apr;252(1):29-37. doi: 10.1002/jmor.10016.
Chick embryos are good models for vertebrate development. The principles that underlie chick wing development have been discovered and there is increasing knowledge about the molecules involved. The importance of identifying molecules is that this provides a direct link to understanding the genetic basis of diversity in form. Chick wing development will be compared with limb development in other vertebrates. Possible mechanisms that could lead to variations in form, including limb reductions and limblessness, differences between fore- and hindlimbs, limb proportions, and interdigital webbing can be suggested.
鸡胚是脊椎动物发育的良好模型。鸡翅膀发育所依据的原理已被发现，并且对其中涉及的分子的了解也越来越多。识别分子的重要性在于，这为理解形态多样性的遗传基础提供了直接联系。将把鸡翅膀的发育与其他脊椎动物的肢体发育进行比较。可以提出可能导致形态变化的机制，包括肢体减少和无肢、前后肢之间的差异、肢体比例以及指间蹼。
