水稻穗粒数遗传机制与育种利用  

Genetic Mechanisms and Breeding Utilization of Grain Number Per Panicle in Rice

作　　者：严语萍 俞晓琦 任德勇[2] 钱前[2] Yuping Yan;Xiaoqi Yu;Deyong Ren;Qian Qian(State Key Laboratory of Rice Biology and Breeding/Institute of Crop Science,Zhejiang University,Hangzhou 310058,China;State Key Laboratory of Rice Biology and Breeding/China National Rice Research Institute,Hangzhou 311400,China)

机构地区：[1]浙江大学作物科学研究所/水稻生物育种全国重点实验室,杭州310058 [2]中国水稻研究所/水稻生物育种全国重点实验室,杭州311400

出　　处：《植物学报》2023年第3期359-372,共14页Chinese Bulletin of Botany

基　　金：国家自然科学基金(No.32071993)。

摘　　要：作为影响产量的关键因素之一,水稻(Oryza sativa)每穗粒数始终备受育种家关注。穗粒数形成是复杂的生物学过程,受多基因调控。根据对表型的影响,这些基因大致包括枝梗数、穗型和小穗确定性相关基因3类。该文综述了穗粒数相关基因的遗传调控机制,并提出在水稻育种中利用的策略,以期为水稻高产育种提供理论依据。As one of the key factors affecting rice yield,the grain number per panicle has always attracted the attention of breeders.The formation of grain number per panicle is a complex biological process,which is regulated by many genes.According to their impact on phenotype,we roughly divide these genes into three categories:related to the number of branches,related to panicle type and related to spikelet determination.In this paper,we summarized the genetic regulation mechanisms of the grain number per panicle-related genes,and put forth the strategies for their use in high yield breeding of rice.

关 键 词：水稻 产量 穗粒数 遗传机制 育种 

分 类 号：S511[农业科学—作物学]