Plant expression carrier construction for divalent insect-resistant gene and transgenic plant acquiring method thereof
Patent Information
- Authority / Receiving Office
- CN ยท China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING CHANGLE ERSHENG GENE TECH
- Publication Date
- 2011-01-26
- Estimated Expiration
- Not applicable ยท inactive patent
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Abstract
Description
field of invention
[0001] The present invention relates to a double amaranth agglutinin (ARA) gene derived from Amaranthus retroflexus L. and Bt (Bacillus thuringiesis, Bt for short) gene sequence derived from Bacillus thuringiensis parasporal crystal protein. Construction of plant expression vector for insect-resistant gene and method for obtaining transgenic plants. In the present invention, by cloning the nucleotide sequence of a retroverted amaranthus agglutinin gene (ARA) and the artificially synthesized Bt insecticidal protein gene, the two insecticidal genes are constructed into the same plant expression vector, and the phloem-specific The expression promoter (BSP) drives the specific expression of the ARA gene in the phloem, and the cauliflower mosaic virus (CaMV) 35S promoter drives the constitutive expression of the Bt gene in plants. It has good poisonous effect on Lepidoptera and Lepidoptera insects, and the increase of insect resistance to insecticidal protein ca...