Rice brittle stem regulatory gene DBC2 and application thereof

A technology for regulating genes and rice, which is applied in the fields of application, genetic engineering, plant gene improvement, etc., and can solve the problems that rice brittle stem characteristics cannot be applied and other problems
CN111471697AActive Publication Date: 2020-07-31SOUTHWEST UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTHWEST UNIVERSITY
Publication Date
2020-07-31

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Abstract

The invention belongs to the technical field of rice breeding, and particularly relates to a rice brittle stem regulatory gene DBC2 and application thereof. The invention discloses the rice brittle stem regulatory gene DBC2, the nucleotide sequence of the gene is shown as SEQ ID No.1, and a protein encoded by the gene is glucoside hydrolase OsGH9A3 with an amino acid sequence shown as SEQ ID No.2.The rice brittle stem regulatory gene DBC2 disclosed by the invention regulates rice brittle stem traits and dwarfing traits by directly or indirectly influencing the expression quantity of celluloseand lignin synthesis genes and secondary cell wall growth related transcription factor genes, and the regulation of the expression of the brittle stem traits is also regulated by temperature. The rice brittle stem regulatory gene DBC2 is applied to rice improvement, rice with brittle and tender stems is expected to be modified, the brittle and tender stems can be used for feed production, and theproblem that existing rice stems are inconvenient to treat is solved.
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Description

technical field

[0001] The invention belongs to the technical field of rice breeding, and in particular relates to a rice brittle stem regulation gene DBC2 and its application. Background technique

[0002] Rice is the main food crop in China and plays an important role in my country's agricultural production. While rice provides food, it also produces a large amount of straw. Because rice straw has poor taste, is difficult to digest, and is not liked by livestock, it is difficult to use it in feed production. At present, the treatment of rice straw mainly adopts incineration or direct return to the field. The incineration of straw will produce a large amount of smoke and carbon dioxide, which will cause serious pollution to the atmospheric environment. Direct return of straw to the field not only increases the difficulty of farming, but also The probability of occurrence of diseases and insect pests has been increased. Therefore, how to deal with rice straw has become an i...

Claims

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