Application of MuMADS2 to culturing of fruit quality-improved transgenic plant

Abstract

The invention provides an application of MuMADS2 to culturing of a fruit quality-improved transgenic plant. The invention provides an application of a MuMADS2 protein or an encoding gene of the MuMADS2 protein to regulation and control of a plant phenotype, improvement on the plant fruit quality and / or increase in a gene expression quantity which is relevant to fruit maturity; and the amino acid sequence of the MuMADS2 protein is a sequence 2 in a sequence table. As proved by the results of reduction in the plant height and reduction in the quantity of fruit seeds in an experiment in which the MuMADS2 is introduced into a tomato for obtaining seven independent strains of a MuMADS2 transgenic tomato driven by a 35S promoter and the MuMADS2 is excessively expressed, the MuMADS2 plays an important role in the processes of fruit development and quality forming.

Description

technical field

[0001] The invention relates to the field of biotechnology, in particular to an application of MuMADS2 in cultivating transgenic plants with improved fruit quality. Background technique

[0002] The protein encoded by the MADS-box gene is a large number of transcription factor families that are very conservative in evolution. The first MADS-box gene isolated in plants is DEFICENS (DEF) isolated from snapdragon grass and DEFICENS (DEF) from Arabidopsis thaliana The AGAMSUS (AG) gene isolated from the plant, and through continuous research on these two model plants, it was found that the MADS-box gene plays an important role in the development of flowers, regulating the plant from flowering time to the formation of flower organs. , pollen development and fertility, etc.

[0003] The fruit ripening process is a very complex change process, including a series of changes in physiological and biochemical processes, such as changes in cell wall structure, changes i...

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