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Genetic editing of grain size genes enables fully mechanized hybrid rice breeding

Hybrid seed production is a labour-intensive manual process that limits fully mechanized hybrid rice breeding. We identify GSE3 as a gene that regulates grain size and demonstrate that fully mechanized hybrid seed production and increased seed number can be achieved using small-grain alleles of GSE3 in male sterile lines.

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Fig. 1: An approach to rapidly improve current parental lines for fully mechanized rice hybrid seed production.


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This is a summary of: Huang, K. et al. Modulation of histone acetylation enables fully mechanized hybrid rice breeding. Nat. Plants (2024).

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Genetic editing of grain size genes enables fully mechanized hybrid rice breeding. Nat. Plants 10, 844–845 (2024).

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