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Construction method of rice transcription factor oshrs1 mutant and its application in rice drought stress

A technology of rice transcription factor and mutant, applied in the construction of rice transcription factor OsHRS1 mutant, the application field of rice drought stress, can solve the problem that abiotic stress is not reported and so on

Active Publication Date: 2022-04-15
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention takes paddy rice as research material, relevant OsHRS1 The research is mainly related to flower development and has not been reported in abiotic stress

Method used

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  • Construction method of rice transcription factor oshrs1 mutant and its application in rice drought stress
  • Construction method of rice transcription factor oshrs1 mutant and its application in rice drought stress
  • Construction method of rice transcription factor oshrs1 mutant and its application in rice drought stress

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1: Rice Transcription Factors OsHRS1 Nucleotide sequence and amino acid sequence acquisition

[0041] Log in to the homepage of the Rice Database Center (http: / / www.ricedata.cn / gene / ), and search for it according to its LOC_Os03g55590 OsHRS1 Nucleotide sequence and amino acid sequence. Reference sequence such as figure 1 shown.

Embodiment 2

[0042] Example 2: Rice Transcription Factors OsHRS1 subcellular localization of

[0043] Through the multiple cloning site of pEXT06 / g empty vector sequence, in the target gene OsHRS1 A forward primer and a reverse primer were designed at both ends of the CDS region of the pEXT06 / g vector, and the pEXT06 / g vector has a GFP tag, which shows green under fluorescence. The primers are as follows (the bold is the vector sequence, and the following is the first and last ends of the CDS region of the target gene):

[0044] OsHRS1 -GFP-F: 5' tcagcagtcgaagagcATGGGGCTGGACGTGGGGGA 3' (SEQ ID NO. 6)

[0045] OsHRS1 -GFP-R: 5' TTAGCGTGTGAAGAGCTTTTCGGACATAGCCTTCC 3' (SEQ ID NO. 7)

[0046] Obtained by PCR OsHRS1 For the fragment with the vector sequence, a DNA fragment of about 1259 bp was recovered using a DNA recovery kit, and this fragment was connected to the corresponding pEXT06 / g vector by homologous recombination. The obtained vector was named pEXT06 / g-HRS1. Agrobacterium GV3...

Embodiment 3

[0054] Example 3: OsHRS1 Identification of positive plants of the knockout material T0 generation

[0055] Amplified from rice Nipponbare total cDNA by RT-PCR OsHRS1 Gene full-length cDNA (open reading frame part). The first-strand synthesis was performed according to the instructions of Roche's Revert Aid TM First Strand cDNA Synthesis Kit. according to OsHRS1 The following primers were designed for the sequence of the gene, F: 5'-ACCCTTCCTCCAGTTCTTG -3' (SEQ ID NO.1) and R: 5'- TCCACGAGCACGATCTTTC -3' (SEQ ID NO.2) were RT-PCR primers, which were carried out by RT-PCR For cDNA amplification, the amplification conditions were: 95°C preheating for 3 min; 95°C for 10 s, 60°C for 30 s, 72°C for 2 min, a total of 35 cycles; 72°C for 10 min. After PCR, electrophoresis analysis was performed, and the amplified fragment of about 1700 bp was recovered using the gel recovery kit of Kangwei Century Company. Connect the gel recovered fragments to T vectors to transform competent c...

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Abstract

The invention belongs to the field of crop genetics and breeding, and in particular relates to a method for constructing a rice transcription factor OsHRS1 mutant and its application in rice drought stress. The gene is rice MYB family transcription factor gene OsHRS1 , whose sequence is shown in Figure 1. Functional analysis of rice transformation shows that OsHRS1 It plays an important role in rice drought stress, and can also be used for the application of anti-retrograde genes in other crops. The anti-stress gene comes from the plant itself and has little impact on the environment.

Description

technical field [0001] The invention belongs to the field of crop genetics and breeding, and in particular relates to a method for constructing a rice transcription factor OsHRS1 mutant and its application in rice drought stress. Background technique [0002] Water scarcity is a major agricultural problem that greatly affects plant growth and development, reducing crop yields. Of the total human water consumption, 70% is used for agriculture. Therefore, it is of great significance to study the water-saving and drought-resistant mechanism of crops and reduce the current and future drought risks. Rice is one of the most important food crops in China, and it is also the largest agricultural water user. How to improve the water use efficiency of rice, carry out research on water saving and drought resistance of rice, develop water-saving rice, alleviate the contradiction between supply and demand of water resources, and save water and fight drought in agriculture of prominent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07K14/415C12N15/29C12N15/11C12N15/82A01H5/00A01H6/46
CPCC12N15/8218C12N15/8273C07K14/415
Inventor 高勇陈建民张梦娇朱光陶海霞李婷婷
Owner YANGZHOU UNIV