Application of an elite haplotype of indica rice and its encoding protein in improving yield of japonica rice
By introducing the superior haplotype BS1 protein or its encoding gene from indica rice into japonica rice and regulating its expression and activity, the problem of low yield in japonica rice was solved, and the yield and biomass were improved.
CN122128272APending Publication Date: 2026-06-02INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Existing technologies are insufficient to effectively increase the yield of japonica rice. The lack of application of superior alleles from indica rice in japonica rice results in lower biomass and yield compared to indica rice.
Method used
By introducing the superior haplotype BS1 protein or its encoding gene from indica rice into japonica rice, plant yield, plant height, and tiller number can be regulated, and the expression level and activity of BS1 protein can be increased or decreased. Gene editing and transgenic technologies can be used to optimize the expression and function of BS1 protein.
Benefits of technology
It has improved the yield, plant height and tiller number of japonica rice, and enhanced the biomass and yield performance of japonica rice.
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Abstract
This invention discloses the application of a superior haplotype of indica rice and its encoded protein in increasing the yield of japonica rice. This invention provides the application of the BS1 protein or its encoding gene in regulating plant yield, plant height, and / or tiller number; the amino acid sequence of the BS1 protein is SEQ ID NO:3 or SEQ ID NO:4. This invention confirms that BS1 from both indica and japonica rice has the function of regulating rice yield, and that the indica form... BS1 Introducing genes into japonica rice varieties can increase the yield of chassis material. Currently, my country's main japonica rice varieties lack the dominant haplotype BS1 genotype of indica rice. Therefore, introducing the BS1 gene from indica rice into japonica rice can increase the yield of japonica rice and has significant application potential.
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