螺旋动物胚胎的发育模式。

Developmental patterns in spiralian embryos.

机构信息

Department of Biology, University of Rochester, Rochester, NY 14607, USA.

出版信息

Curr Biol. 2010 Jan 26;20(2):R72-7. doi: 10.1016/j.cub.2009.11.041.

DOI:10.1016/j.cub.2009.11.041

PMID:20129046

Abstract

At least five animal phyla exhibit spiralian development, which is characterized by striking similarities in the geometry of the early cleavage pattern and the fate map of the blastula, along with similarities in larval morphology. Recent advances in reconstructing the phylogeny of spiralians and their relatives suggest that the common ancestor of a large clade of protostome phyla known as the Lophotrochozoa had spiralian development. In this minireview, I describe characteristics of spiralian development and some recent insights into its mechanisms and evolution.

摘要

至少有五个动物门表现出螺旋形发育，其特征在于早期分裂模式的几何形状和囊胚命运图具有惊人的相似性，以及幼虫形态的相似性。最近在重建螺旋形动物及其近亲的系统发育方面的进展表明，被称为环节动物的大型原口动物门的一个大分支的共同祖先具有螺旋形发育。在这篇简评中，我描述了螺旋形发育的特征，以及最近对其机制和进化的一些见解。