多种发育过程是被子植物性别分化的基础。

Multiple developmental processes underlie sex differentiation in angiosperms.

机构信息

Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, USA.

出版信息

Trends Genet. 2011 Sep;27(9):368-76. doi: 10.1016/j.tig.2011.05.003.

DOI:10.1016/j.tig.2011.05.003

PMID:21962972

Abstract

The production of unisexual flowers has evolved numerous times in dioecious and monoecious plant taxa. Based on repeated evolutionary origins, a great variety of developmental and genetic mechanisms underlying unisexual flower development is predicted. Here, we comprehensively review the modes of development of unisexual flowers, test potential correlations with sexual system, and end with a synthesis of the genetics and hormonal regulation of plant sex determination. We find that the stage of organ abortion in male and female flowers is temporally correlated within species and also confirm that the arrest of development does not tend to occur preferentially at a particular stage, or via a common process.

摘要

雌雄异花和雌雄同株的植物类群中多次进化出了单性花。基于重复的进化起源，人们预测了单性花发育背后存在多种多样的发育和遗传机制。在这里，我们全面综述了单性花的发育模式，检验了它们与性系统之间的潜在关联，最后综合了植物性别决定的遗传学和激素调控。我们发现，同一物种中单性雄花和雌花的器官败育阶段在时间上具有相关性，同时也证实了发育的停滞并不倾向于在特定阶段或通过共同的过程优先发生。