植物多倍化及在育种上的应用

Plant Polyploidization And Its Appliance In Breeding

杂交和多倍化是高等植物物种形成和进化的最重要的途径 ,约 70 %的被子植物在其进化过程中曾经历过一次或多次多倍化事件[1] 。多倍体在植物中广泛存在 ,由于其具有一些独特的性质 ,历来受到广大育种工作者的重视。已有至少 5 0多个国家已经开展了该方面的研究 ,涉及16 0多个属 ,且取得了一定的成就。在水稻育种方面多倍体被蔡得田、袁隆平等列为 2 1世纪水稻育种新战略。

Hybridization and polyploidization are the most important modes of plant speciation and evolution in higher plant,and about 70% of angiosperns have experienced polyploidization once or more in their evolutionary history Polyploids are very common in plants and have always been put emphasis on by the breeders,due to their particular traits So far,the research of the polyploids has been carried out,and this involved 160 genera In the breeding aspects of rice,Yuan Longping,Cai Detian both listed them in the 21st century breeding strategy of rice In this article the new advances of polyploid research are discussed