Self-Incompatibility in the Brassicaceae
Self-Incompatibility in the Brassicaceae
复制标题
DOI：
10.1007/978-1-4419-7118-0_14
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
J. Nasrallah
中科院分区：
文献类型：
--
作者：
J. Nasrallah
开花植物已经进化出多种控制授粉的机制。遗传自交不亲和性是迄今为止已知的最复杂和“智能”的系统之一。在十字花科植物中，自交不亲和反应中对“自体”花粉的识别是基于匹配的柱头表面受体和由位点单倍型编码的花粉外壳配体之间高度特异性的相互作用，这会触发花粉管发育的停滞。本章介绍了十字花科 SI 分析的简要历史记录，概述了我们目前对 SI 识别和反应阶段的理解，总结了在阐明 SI 丧失和各谱系中自体受精转变的遗传基础方面取得的进展，重点是从最近开发的转基因拟南芥自交不亲和模型的分析中获得的知识。
Flowering plants have evolved several mechanisms for controlling pollination. Genetic self-incompatibility is one of the most elaborate and “smart” systems known to date. In the Brassicaceae, recognition of “self” pollen in the self-incompatibility response is based on highly specific interactions between matched stigma surface receptors and pollen coat ligands encoded by haplotypes of theSlocus, which triggers arrest of pollen tube development. This chapter presents a brief historical account of the analysis of SI in the Brassicaceae, an overview of our current understanding of the recognition and response phases of SI, and a summary of progress made in elucidating the genetic basis of loss of SI and switches to self-fertility in various lineages, with an emphasis on knowledge gained from analysis of a recently developed transgenicArabidopsis thalianaself-incompatible model.