Journal of Nuclear Agricultural Sciences ›› 2019, Vol. 33 ›› Issue (9): 1742-1748.DOI: 10.11869/j.issn.100-8551.2019.09.1742

• Induced Mutations for Plant Breeding·Agricultural Biotechnology • Previous Articles     Next Articles

Starch Biosynthesis in Rice Endosperm and Its Applications in Breeding

LI Ruiqing1,2, TAN Yuanyuan3, YAN Ying1, ZHANG Lixia1, CAO Liming1, WU Shujun1,*   

  1. 1 Crop Breeding and Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403;
    2 College of Agronomy, Anhui Agricultural University, Hefei, Anhui 230036;
    3 The New Contryside Development Institute at Zhejiang University, Hangzhou, Zhejiang 310058
  • Received:2018-03-01 Revised:2018-06-03 Online:2019-09-09 Published:2019-07-23

水稻胚乳淀粉合成及其育种应用

李瑞清1,2, 谭瑗瑗3, 闫影1, 张丽霞1, 曹黎明1, 吴书俊1,*   

  1. 1 上海市农业科学院作物育种栽培研究所,上海 201403;
    2 安徽农业大学农学院, 安徽 合肥 230036;
    3 浙江大学新农村发展研究院,浙江 杭州 310058
  • 通讯作者: *吴书俊,男,副研究员,主要从事优质水稻育种及稻米品质研究。E-mail: 136601095@qq.com
  • 作者简介:李瑞清,男,助理研究员,主要从事作物分子育种研究。E-mail:rqli@21cn.com
  • 基金资助:
    上海市种业发展项目[沪农科种字(2017)第1-2号],上海市科技兴农重点攻关项目[沪农科攻字(2016)第6-1-1号],上海市农业科学院卓越团队建设(农科创2017A-05),上海市水稻产业技术体系建设(2017-2021)

Abstract: As the major component of rice endosperm, starch possesses important biological functions and economic values. Amyloplast is one sort of specialized plastid for starch synthesis and storage in grain endosperm. During filling periods, grain endosperm accumulates a great amount of starch to fill the intracellular space of amyloplast for further formation of crystal starch granules. Thus, starch biosynthesis and structures in endosperm have great effects on the yields and the formation of eating and cooking qualities (ECQs). Here, we reviewed the molecular pathway of starch biosynthesis in rice endosperm, and proposed some strategies for improvement on yields and ECQs, which would provide theoretical basis for rice breeding.

Key words: starch, eating and cooking quality, breeding improvement, endosperm, rice

摘要: 淀粉是稻米胚乳的主要组成成分,具有重要的生物学功能和经济价值。籽粒胚乳淀粉合成和贮藏于一种异质化的质体中,即淀粉体。而籽粒形成期,胚乳中富集大量淀粉以充实淀粉体胞内空间并形成晶体状的淀粉颗粒,因此胚乳淀粉组成和结构会极大地影响稻米产量和食味品质的形成。本文综述了胚乳淀粉合成的分子途径,改良稻米产量和食味品质的分子策略,以期为优质稻米育种实践提供一定的理论依据。

关键词: 淀粉, 食味品质, 育种改良, 胚乳, 水稻