Soybean MADS-box gene and applications thereof in floral organ modification

A soybean and gene technology, applied in the field of plant genetic engineering, can solve the problems of flower development research lag
CN101805740AInactive Publication Date: 2010-08-18NANJING AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING AGRICULTURAL UNIVERSITY
Publication Date
2010-08-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a soybean MADS-box gene and applications thereof in floral organ modification, belonging to the field of biotechnology. GmMADS1, transcription factor in nucleus, is expressed in all the floral organs of four circles and, however, expressed in large quantity in petals and stamens, tobacco expressing excessive GmMADS1 increases the number of sepals, stamens and petals, a transformation from the sepals and the stamens to the petals is formed, as a result, the occurrence of cracking petals and bending stamens etc. causes the stamens to fail to come into contact with pistils, thus normal pollination and normal anther dehiscence cannot be realized and pollen activity is lowered. The above results represent that GmMADS1 plays an important regulation and control role in determining the position and the number of the petals and the development of male organs. New floral organ-variant material, resulted from the GmMADS1 gene, can be used for the breeding of crops and ornamental horticulture plants.
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Description

technical field

[0001] The invention relates to the application of a soybean MADS-box gene GmMADS1, which belongs to the field of plant genetic engineering. Background technique

[0002] People have isolated a large number of MADS-box genes from the entire huge group of plants at different evolutionary positions. MADS-box genes play an important role in flower development, whether it is the transition from vegetative growth to reproductive growth; Also in the initial stage of reproductive growth, floral meristem-determining genes initiate the development of floral meristem; and in the later stage of reproductive growth, they play an important role in the development of floral organ primordia.

[0003] Soybean is an important grain and oil crop, and the research on its flower development is relatively lagging behind. Soybeans have many flowers, small flower vessels, and heavy pollen. When the flowers are open, the wing petals and keel petals tightly cover the stamens and sti...

Claims

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