植物孢子体型自交不亲和的分子研究进展

Research Progress in Molecule of Sporophytic Self-Incompatibility in Plants

为避免自生花粉的受精导致物种退化,开花植物进化出了许多的机制,自交不亲和系统是其中的一种,可增强植物的多样性以及对自然环境的适应能力,有效促进杂交。根据不同的遗传方式可分为不同类型。本综述以近年来孢子体自交不亲和的研究结果为基础,综述了孢子体型自交不亲和的分子机制,芸薹属及芸薹属以外的植物中S位点与S位点相关基因的功能。除了芸薹属植物以外的其他植物中对孢子体型自交不亲和的研究甚是少见,缺少全面的认识和研究,且信号传递路径还不是完全清楚,还需要进一步的研究。

In order to avoid species degradation caused by spontaneous pollen fertilization, flowering plants evolved out of many mechanisms, self-incompatibility was one of them. It could enhance the diversity of plants and the ability to adapt to the natural environment to effectively promote hybridization. It could be divided into different types according to different genetic methods. In this review, we based on the results of study of sporophytic self-incompatibility in recent years, reviewed the molecular mechanism of sporophytic self-incompatibility, and the function of S-locus and S-locus related gene in Brassica and other plants. There is less studies of sporophytic self-incompatibility in plants besides Brassica, these studies lacked of comprehensive understanding and research, and the signal transmission path was not entirely clear, therefore it needed further study.