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Transcription factor CsWRKY1 separated from glandular hairs of marihuana and application thereof

A technology for transcription factors and cannabis glands, which can be used in applications, genetic engineering, plant genetic improvement, etc., and can solve the problems of difficulty in screening and identification of transcription factors.

Active Publication Date: 2020-02-07
厦门梓蔓生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, although some transcription factors that regulate the synthesis of cannabinoids have been discovered, there are still many important transcription factors that have not been discovered, and the screening and identification of transcription factors are difficult. Research on the biology of transcription factors involved in the regulation of gene expression process is very important

Method used

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  • Transcription factor CsWRKY1 separated from glandular hairs of marihuana and application thereof
  • Transcription factor CsWRKY1 separated from glandular hairs of marihuana and application thereof
  • Transcription factor CsWRKY1 separated from glandular hairs of marihuana and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The 548bp THCAS promoter was cloned with gene-specific primers, and the binary vector pMDC163:ProTHCAS:GUS was constructed using Gateway technology. Next, Agrobacterium was used to transform Arabidopsis thaliana, and 10 independent ProTHCAS:GUS transgenic lines were analyzed. The expression of the GUS reporter gene was analyzed histochemically in different plant organs, and the results were as follows: figure 1 As shown, among them, picture a: cotyledon of 6-day-old seedling; picture c: mature leaf; picture e: stem; picture g: flower; picture b, d, f, h are trichomes in picture a and picture c respectively Close-up views on , e, and g. a, c, e, g=1000 μm; b, d, f, h=500 μm. It can be seen from the figure that the GUS activity is only in the leafy organ ( figure 1 a-h) and stem ( figure 1 e, f) Observed in trichomes. In flowers, GUS activity was detected only in the trichomes of sepals ( figure 1 g, h).

Embodiment 2

[0040] The same THCAS promoter used for the GUS expression assay was cloned in the MCS (KpnI(5') and XhoI(3')) upstream of the AUR1-C gene in the yeast vector pAbAi using yeast one-hybrid technique to screen for targeted binding sequences subfragment. The AUR1-C gene is an antifungal antibiotic resistance gene. The constructed vector structure was ProTHCAS-AbA, digested and cut by BstBI enzyme, and transformed into Y1HGold yeast strain using PEG-mediated transformation method according to the instructions. Using the URA3 gene of pAbAi as a selection marker, it was integrated into the non-functional ura3 site of Y1HGold yeast strain. Transformants were selected on media lacking synthetic glucose and verified in colony PCR. Using Y1HGold-ProTHCAS-ABA as the material, the Y1H cDNA library was constructed using the mRNA of the female flower of Cannabis (Purple Kush). After filtering, the results are as follows figure 2 It can be seen from the figure that CsWRKY1 can interact ...

Embodiment 3

[0042] To determine the subcellular localization of CsWRKY1, the full-length CsWRKY1 coding region was fused to full-length enhanced yellow fluorescent protein (EYFP). The CsWRKY1-EYFP fusion construct as well as EYFP were transiently expressed in protoplasts isolated from Arabidopsis leaves under the control of the 35S promoter. CsWRKY1-EYFP was only observed in the nucleus ( image 3 ), which is consistent with its role as a transcription factor.

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Abstract

The invention provides a transcription factor CsWRKY1 and application thereof and belongs to the technical field of plant genetic engineering. According to the invention, the transcription factor CsWRKY1 is separated from glandular hairs of marihuana as a plant for the first time, a nucleotide sequence of the transcription factor CsWRKY1 is shown as SEQ ID NO:1, and an amino acid sequence coded bythe transcription factor CsWRKY1 is shown as SEQ ID NO:2. Shown through functional tests, the transcription factor CsWRKY 1 can interact with a THCA synthetase (THCAS) gene promoter, so that the inhibition effect is exerted in synthesis of cannabinoid compounds, and the control effect on synthesis of the cannabinoid compounds can be effectively realized.

Description

technical field [0001] The invention belongs to the technical field of plant genes, and in particular relates to a transcription factor CsWRKY1 isolated from glandular hairs of cannabis and an application thereof. Background technique [0002] Marijuana (Cannabis sativa) is an annual herb of the Cannabis family Cannabis genus, dioecious, and is one of the earliest crops planted by humans. Monoecious. As a traditional economic crop in China, it has important economic value and involves many aspects such as textiles, building materials, food and pharmaceuticals. For example, the flowers, leaves and roots of marijuana can be used to extract medicinal ingredients for pharmaceutical use, and can also be used as soil fertilizers to kill insects and prevent diseases and increase soil organic matter; bast fiber can be made into high-grade clothes, stalks The core fiber can be used as papermaking and building materials; the grain can be used as food and feed, and the extracted oil ...

Claims

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Application Information

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IPC IPC(8): C12N15/29C07K14/415C12N15/82A01H5/00A01H6/28
CPCC07K14/415C12N15/8243C12N15/8217
Inventor 刘圆圆张熠平吕素娟
Owner 厦门梓蔓生物科技有限公司
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