远缘杂交在水稻遗传育种中的应用

水稻种内基因资源的充分利用为我国粮食增产作出了巨大贡献。为进一步挖掘种间、属间及亚远缘物种的有利基因,维持栽培稻遗传多样性,实现水稻超高产、优质和多抗育种,本文综述了远缘杂交所涉及的分子机理及水稻远缘杂交育种的思路,概述了水稻种间和属间远缘基因资源的研究成果、远缘杂交障碍及克服途径、多种技术在水稻远缘杂交方面的发展概况等,为加快远缘物种基因资源在水稻育种上的应用提供参考。

Application of Distant Hybridization in Rice Genetics and Breeding

The full utilization of genetic resources in rice has made great contributions to the increase of grain production in China.In order to further explore the beneficial genes of interspecific,intergeneric and sub-farm species,maintain the genetic diversity of cultivated rice,and achieve super high yield,high quality and multi-resistant breeding of rice,the molecular mechanisms involved in distant hybridization and rice distant hybridization were reviewed.The authors summarized the research results of rice interspecific and intergeneric distant genetic resources,the obstacles of distant hybridization and the ways to overcome them,and the development of various techniques in the distant hybridization of rice.It provides a reference for accelerating the application of genetic resources of distant species in rice breeding.