植物学报 ›› 2023, Vol. 58 ›› Issue (3): 359-372.DOI: 10.11983/CBB23012

• 特邀综述 • 上一篇    下一篇

水稻穗粒数遗传机制与育种利用

严语萍1,2, 俞晓琦1,2(), 任德勇2, 钱前2   

  1. 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
  • 收稿日期:2023-02-04 接受日期:2023-04-18 出版日期:2023-05-01 发布日期:2023-05-17
  • 通讯作者: *E-mail: yuxiaoqi128@163.com
  • 基金资助:
    国家自然科学基金(32071993)

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

Yuping Yan1,2, Xiaoqi Yu1,2(), Deyong Ren2, Qian Qian2   

  1. 1State Key Laboratory of Rice Biology and Breeding/Institute of Crop Science, Zhejiang University, Hangzhou 310058, China
    2State Key Laboratory of Rice Biology and Breeding/China National Rice Research Institute, Hangzhou 311400, China
  • Received:2023-02-04 Accepted:2023-04-18 Online:2023-05-01 Published:2023-05-17
  • Contact: *E-mail: yuxiaoqi128@163.com

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。

关键词: 水稻, 产量, 穗粒数, 遗传机制, 育种

Abstract: 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.

Key words: rice, yield, grain number per panicle, genetic mechanism, breeding