Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (5): 1223-1234.DOI: 10.3969/j.issn.1004-1524.2023.05.26

• Review • Previous Articles    

Research progress in gene cloning and molecular mechanism of rice lethal mutants

XIA Xiaodong1,2(), ZHANG Xiaobo2, SHI Yongfeng2, XU Rugen1,*()   

  1. 1. College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
    2. China National Rice Research Institute, Hangzhou 311401, China
  • Received:2022-06-13 Online:2023-05-25 Published:2023-06-01

Abstract:

Rice lethal mutants mainly include leaf-color mutants and early senescence mutants. The cloning and functional analysis of related genes of these two mutants are of great significance for the analysis of rice lethal albinism and early senescence, they are mainly involved in the synthesis and degradation of photosynthetic pigments, chloroplast-related pathways, protein synthesis and degradation, hormone pathways, programmed cell death and transcription factor pathways. In this work, the cloning and molecular mechanism of rice lethal mutation genes were summarized, and their breeding value was analyzed. On the basis of elucidating the mechanism behind rice senescence regulation, the strategies of its molecular and cultivation regulation practices should be designed to explore its breeding potential.

Key words: rice, lethal mutants, albino leaf, early senescence, gene, chloroplast, protein

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