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Common wild rice green tissue specific expression gene promoter and application thereof
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A green tissue and promoter technology, applied in the fields of application, genetic engineering, recombinant DNA technology, etc., can solve the problem of undetectable Bt protein
Active Publication Date: 2018-09-28
THE INST OF BIOTECHNOLOGY OF THE CHINESE ACAD OF AGRI SCI
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Yang et al. fused the Cry1AcCry1l gene with the green tissue-specific promoter pGreen to transform the rice variety Xiushui-134. The enzyme-linked immunosorbent assay showed that the transgenic rice had better insect resistance, but almost no Bt protein was detected in the seeds (Yang Y Y ,Mei F,Zhang W,et al.Creation of Bt rice expressing a fusion protein of Cry1Ac and Cry1I-like using a green tissue-specific promoter[J].J Econ Entomol,2014,107(4):1674-1679.)
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[0041] Genomic DNA of common wild rice was extracted by CTAB method as a template, and the following amplification primers FP and RP were used as primers for PCR amplification, and the reaction system was 50 μL.
[0042] The primer sequences for amplifying OrGSEp-374 are:
[0068] Example 2. Functional research on the root-specific expression fragment OrGSEp of common wild rice
[0069] 1. Preparation of recombinant vector
[0070] The recombinant vector pBinGlyRed-GUS-OrGSEp374 is to replace the OrGSEp374 shown in sequence 1 with pBinGlyRed-GUS ( Figure 7 , Zhao Zhiqiang et al., Cloning and identification of a green tissue-specific expression promoter of common wild rice. Biotechnology Bulletin, 2017, (7): 51-57) the CaMV35S promoter driving GUS gene expression between the BamH I and EcoR I restriction sites of the vector, the vector obtained.
[0071] The recombinant vector pBinGlyRed-GUS-OrGSEp274 is a vector obtained by replacing the CaMV 35S promoter driving GUS gene expression between the BamH I and EcoR I restriction sites of the pBinGlyRed-GUS vector with OrGSEp274 shown in Sequence 2.
[0072] The recombinant vector pBinGlyRed-GUS-OrGSEp204 is a vector obtained by replacing the CaMV 35S promoter driving the expression of the GUS gene ...
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Abstract
The invention discloses a common wild rice green tissue specificexpression genepromoter and application thereof. The invention provides a DNA molecule which is a DNA molecule as follows: 1) a DNA molecule of which an encoding zone is shown in sequence 1 in a sequence table; 2) a DNA molecule of which an encoding zone is shown in sequence 2 in the sequence table; 3) a DNA molecule of which an encoding zone is shown in sequence 3 in the sequence table; 4) a DNA molecule of which an encoding zone is shown in sequence 4 in the sequence table; 5) a DNA molecule which is hybridized with any defined DNA sequence of 1)-4) under a strict condition and has functions same as those of the DNA sequences. The invention finds a novel green tissue specificpromoter, and novel regulation and control elements are provided for genetic engineering breeding of rice.
Description
technical field [0001] The invention relates to the field of plantgenetic engineering, in particular to a common wild rice green tissue specificexpression genepromoter and application thereof. Background technique [0002] Promoters play a very critical role in the expression regulation of genes, and also play an important role in plantgenetic engineering breeding. Plant promoters are mainly divided into three categories: constitutive promoters, inducible promoters, and tissue-specific promoters. In the field of plant genetic engineering, the most studied are inducible promoters and tissue-specific promoters. Wang et al. isolated the promoter of PeNAC1 gene from Populus euphratica and transformed it into Arabidopsis. After abiotic stress treatment and GUS activity analysis, it was found that the promoter of PeNAC1 was induced by drought and salt stress (Wang J Y, Wang J P, Yang HF. Identification and functional characterization of the NAC gene promoter from Populuseuph...
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