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Control of tillering in rice

Author

Listed:
  • Xueyong Li

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Qian Qian

    (China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Zhiming Fu

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Yonghong Wang

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Guosheng Xiong

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Dali Zeng

    (China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Xiaoqun Wang

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Xinfang Liu

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Sheng Teng

    (China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Fujimoto Hiroshi

    (China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Ming Yuan

    (China Agricultural University)

  • Da Luo

    (Institute of Plant Physiology and Ecology, Chinese Academy of Sciences)

  • Bin Han

    (National Center for Gene Research, Chinese Academy of Sciences)

  • Jiayang Li

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

Abstract

Tillering in rice (Oryza sativa L.) is an important agronomic trait for grain production, and also a model system for the study of branching in monocotyledonous plants. Rice tiller is a specialized grain-bearing branch that is formed on the unelongated basal internode and grows independently of the mother stem (culm) by means of its own adventitious roots1. Rice tillering occurs in a two-stage process: the formation of an axillary bud at each leaf axil and its subsequent outgrowth2. Although the morphology and histology2,3 and some mutants of rice tillering4 have been well described, the molecular mechanism of rice tillering remains to be elucidated. Here we report the isolation and characterization of MONOCULM 1 (MOC1), a gene that is important in the control of rice tillering. The moc1 mutant plants have only a main culm without any tillers owing to a defect in the formation of tiller buds. MOC1 encodes a putative GRAS family nuclear protein that is expressed mainly in the axillary buds and functions to initiate axillary buds and to promote their outgrowth.

Suggested Citation

  • Xueyong Li & Qian Qian & Zhiming Fu & Yonghong Wang & Guosheng Xiong & Dali Zeng & Xiaoqun Wang & Xinfang Liu & Sheng Teng & Fujimoto Hiroshi & Ming Yuan & Da Luo & Bin Han & Jiayang Li, 2003. "Control of tillering in rice," Nature, Nature, vol. 422(6932), pages 618-621, April.
    • Handle: RePEc:nat:nature:v:422:y:2003:i:6932:d:10.1038_nature01518
    DOI: 10.1038/nature01518
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    Cited by:

    1. Chunhao Dong & Lichao Zhang & Qiang Zhang & Yuxin Yang & Danping Li & Zhencheng Xie & Guoqing Cui & Yaoyu Chen & Lifen Wu & Zhan Li & Guoxiang Liu & Xueying Zhang & Cuimei Liu & Jinfang Chu & Guangyao, 2023. "Tiller Number1 encodes an ankyrin repeat protein that controls tillering in bread wheat," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    2. Tao Guo & Zi-Qi Lu & Yehui Xiong & Jun-Xiang Shan & Wang-Wei Ye & Nai-Qian Dong & Yi Kan & Yi-Bing Yang & Huai-Yu Zhao & Hong-Xiao Yu & Shuang-Qin Guo & Jie-Jie Lei & Ben Liao & Jijie Chai & Hong-Xuan, 2023. "Optimization of rice panicle architecture by specifically suppressing ligand–receptor pairs," Nature Communications, Nature, vol. 14(1), pages 1-15, December.

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