浙江省水稻辐射育种研究进展

Advance in Study and Application of the Rice Breeding by Radiation in Zhejiang Province

本文综述了21世纪以来,浙江省通过辐射诱变获得的水稻穗型、株高、叶形、叶色、花器等性状突变体种质资源的概况,开展相关突变性状的分子定位、克隆、遗传机理的研究进展,以及这些研究对于水稻新品种培育的促进作用。对浙江省通过直接或间接利用辐射选育而成的245个水稻新品种的分析发现,其中89.9%的品种源自辐农709和浙辐802;甬优系列籼粳杂交水稻不育系的81.8%源自辐农709。浙江省辐射育种的理论和实践成果揭示,继续深入开展水稻辐射诱变创制突变体及其分子生物学研究,有利于丰富水稻种质资源,提高育种效率。

This paper reviewed the advances since the 21 st century on the study of germplasm resources of mutant obtained by irradiation in Zhejing province,including panicle,plant height,leaf shape,leaf color,floral tube in rice,and also described the related researches on molecular mapping,cloning,the genetic mechanism of gene mutation and the promotion in rice breeding. The paper analyzed the genetic background of 245 rice varieties bred by radiation,which released by Zhejiang province government since the 21 century. Among which 89. 9% came directly or indirectly from Funong709 and Zhefu802,and 81. 8% sterile line of Indica-Japonica hybrid rice Yongyou series in production were from Funong709. Further research on molecular biology of radiation induced mutation in rice is beneficial to enrich the germplasm resources and improve the efficiency of breeding.