Application of cotton GhD05G2577 gene in breeding for increasing plant germination rate, biomass, seed size and thousand seed weight

By overexpressing the Gh_D05G2577 gene in cotton, the germination rate and biomass of the plant were regulated, which solved the problems of low germination and yield of cotton in harsh environments. Significant increases in germination rate and biomass, seed size and thousand-seed weight were achieved, thus enhancing the plant's stress resistance and yield.

CN121950830APending Publication Date: 2026-05-01ANYANG INST OF TECH
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Patent Information

Application Number
CN202610107592.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-27
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively improve cotton germination rate, biomass, seed size, and thousand-seed weight, especially in harsh environments such as drought and salinity, which affect early germination and yield of cotton.

Method used

By overexpressing the cotton Gh_D05G2577 gene, the transcription factor Gh_D05G2577 was used to regulate the germination rate, biomass, and seed size of plants. A recombinant vector was constructed and transformed into plants, and transgenic plants with high expression were screened out.

Benefits of technology

It significantly improved the germination rate, biomass, seed size, and thousand-seed weight of plants, enhanced their stress resistance and yield, provided genetic resources and technical support, and laid the foundation for breeding new varieties with high yield and strong stress resistance.

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Abstract

The invention provides a breeding application of a cotton GhD05G2577 gene in increasing the plant germination rate, the biomass, the seed size and the thousand seed weight. Through a transgenic technology, an arabidopsis thaliana homozygous line plant over-expressing the GhD05G2577 gene is obtained. Compared with a wild strain, the early germination rate of a transgenic plant in a 1 / 2 MS plate is obviously increased; in the seedling stage, the leaf number is increased, the leaf length and the leaf width are increased, the plant height is increased, the chlorophyll content SPAD is increased, and the fresh weight, the dry matter content and the biomass accumulation are remarkably increased; the fruit shows that the legume length and width are increased, the seed length and width are increased, and the thousand seed weight is increased, and all reach a significant level. When the gene is applied to high-yield and income-increasing breeding of plants, the germination rate of the plants can be increased, biomass accumulation of the plants can be increased, the seed size and thousand seed weight can be increased, and an alternative scheme is effectively provided for high-yield molecular breeding of the plants.
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