Rubber tree HbAG gene and application thereof

Abstract

The invention provides a rubber tree HbAG gene, having a nucleotide sequence as shown in SEQ ID NO: 1. The invention further provides a protein coded with the HbAG gene and application of the HbAG gene. The HbAG gene is cloned from a rubber tree for the first time, and the gene belongs to AG subfamily, participates in development of flowers, formation of ovules and maturation of seeds and executes the functions of D genes. Subcellular localization analysis shows that the gene is localized in a cell nucleus and thus conforms to the feature of a transcription factor. The gene is further transferred to arabidopsis to obtain a transgenic plant, and the transgenic plant is discovered to have such phenotypes that the flowering time is obviously advanced, the nutritional growth time is short, and the plant is dwarfed and the like, so the gene plays an important control role in flower organ development and reproductive development of rubber trees. By using the HbAG gene for genetic improvement on rubber trees, an effective gene resource can be provided for shortening the breeding periods of the rubber trees, improving the breeding efficiency and the like.

Description

technical field [0001] The invention relates to the field of biological technology and relates to a rubber tree HbAG gene and its application. Background technique [0002] Hevea brasiliensis, commonly known as rubber tree, is an important economic crop in tropical regions of China. The natural rubber it produces is a strategic resource related to the national economy and people's livelihood. With the increase of domestic natural rubber consumption year by year, due to the limitation of planting conditions and suitable rubber land, it is imminent to increase the output per unit area of ​​rubber trees. Rubber trees are perennial trees with a long sexual generation cycle. In the breeding of new varieties of rubber trees, there are many problems such as many flowers and few fruits, and low fruit setting rate, which leads to the failure of many hybrid combinations, which greatly affects the efficiency of rubber tree breeding. Limitation has become one of the problems to be solv...

AI Technical Summary

Problems solved by technology

Rubber trees are perennial trees with a long sexual generation cycle. In the breeding of new varieties of rubber trees, there are many problems such as many flowers and few fruits, and low fruit setting rate, which leads to the failure of many hybrid combinations, which greatly affects the efficiency of rubber tree breeding. Limitation has become one of the problems to be solved in rubber tree breeding

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