| Categories genes  | Tags grain  cell cycle  breeding  cell proliferation  grain width 
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  • Genbank accession number

  • Key message
    • Natural variation in the promoter of TGW2 determines grain width and weight in rice.
    • <U+2022> A single nucleotide polymorphism (SNP) variation at 1818<U+00A0>bp upstream of TGW2 is responsible for its different expression, leading to alteration in grain width and weight by influencing cell proliferation and expansion in glumes
    • TGW2 interacts with KRP1, a regulator of cell cycle in plant, to negatively regulate grain width and weight
    • Genetic diversity analysis of TGW2 in 141 rice accessions revealed it as a breeding target in a selective sweep region
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