Rice OsPPR34 gene as well as encoding protein and application thereof

A technology of gene coding, rice, applied in the field of genetic engineering
CN112795573AActive Publication Date: 2021-05-14SHANGHAI AGROBIOLOGICAL GENE CENT
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI AGROBIOLOGICAL GENE CENT
Publication Date
2021-05-14

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Abstract

The invention provides an OsPPR34 gene which is separated and cloned from rice DNA and is related to a rice plant type and drought resistance. The protein coded by the gene contains a conservative P structural domain of a PPR (pentatricopeptide repeat) family, and participates in RNA editing of a mitochondrial gene. The OsPPR34 gene regulates and controls the plant height of the rice through a gibberellin way, meanwhile, the root tropism is changed, the deep root ratio of a knockout mutant of the OsPPR34 gene is remarkably increased, and the OsPPR34 gene shows high drought resistance in a root canal experiment. The OsPPR34 gene regulates and controls the plant height and the drought resistance of the rice, the plant height of a knockout mutant of the OsPPR34 gene is reduced, and the OsPPR34 gene has a high depth-to-root ratio and can be applied to improvement of the plant type of the cultivated rice and improvement of the drought resistance of the cultivated rice.
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Description

technical field

[0001] The invention belongs to the field of genetic engineering and relates to a gene related to rice production and stress resistance, in particular to a new gene OsPPR34 related to rice plant height and drought avoidance and its application. Background technique

[0002] Rice is the most important food crop in my country and even in the world, providing food for more than 50% of the world's population, and it is also the most important ration in my country. Therefore, how to improve the yield and stress resistance of rice under the situation of global environmental change is an effective means to ensure my country's food security. Plant height is one of the important agronomic traits of rice. In the domestication history of cultivated rice, it is very important to reduce the plant height of rice, reduce the damage of rice lodging, and improve the harvest index. The application of rice semi-dwarf genetic resources during the "Green Revolution" in the 1960...

Claims

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