RPA detection primer for sweet potato leaf roll virus, detection method and application
A technology for detection of sweet potato leafroll virus and primers, which is applied in biochemical equipment and methods, measurement/testing of microorganisms, DNA/RNA fragments, etc., which can solve the problems of expensive instruments and long detection cycle for detection, and achieve easy operation , reliable results and broad application prospects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0031] The RPA detection method of a kind of sweet potato leafroll virus that the present invention relates to, according to the relatively conservative AV1 gene sequence of SPLCV published by GenBank as the target gene, primers are designed by using primer 5 primer design software, and a pair of specific primers are designed. Using Recombinase Polymerase (Recombinase Polymerase), rapid RPA amplification detection of the target gene under constant temperature conditions.
[0032] Wherein, the primer pair is specifically:
[0033] Upstream primer F: 5'-AGGCTGAACTTCGAGACAGCTATCGTGCCCTAC-3', as shown in SEQ ID No:1;
[0034] Downstream primer R: 5'-AAGACCTGCATTCTATCCCTCAGATCCATTCGGAT-3', as shown in SEQ ID No:2.
[0035] Specific steps are as follows:
[0036] Step 100: According to the relatively conserved AV1 gene sequence of SPLCV published by GenBank as the target gene, primers are designed by using primer 5.0 primer design software, and a pair of specific primers are used....
Embodiment 2
[0043] Specific verification of RPA:
[0044] Extract the total DNA of positive samples infected with sweet potato leafroll virus (SPLCV), the total DNA of positive samples of tomato yellow leafroll virus (TYLCD), the positive samples of sweet potato feather mottle virus (SPFMV), the positive samples of sweet potato G virus (SPVG), The cDNA of the positive sample of sweet potato chlorotic dwarf virus (SPCSV) was specifically detected by the RPA reaction system.
[0045] The results showed that 5 μL of the product was analyzed by 2% agarose gel electrophoresis, and the specific results were as follows: figure 2 As shown, only SPLCV detection results have specific bands, and other samples do not produce specific bands, indicating that the established RPA detection method has good specificity for the detection of SPLCV.
Embodiment 3
[0047] In order to investigate the sensitivity of the RPA detection method of sweet potato leafroll virus of the present invention, the applicant adopts 10-fold concentration serial dilution method to dilute the extracted sweet potato leafroll virus DNA into a concentration of 10 ng μL respectively for the DNA sample in step 200 of embodiment 1 -1 , 1ng μL -1 , 100pg μL -1 , 10pg μL -1 , 1pg μL -1 , 100fg μL -1 , 10fg μL -1 ; 1fg μL -1 ; A total of 8 different concentration gradients. Perform the RPA reaction according to step 400 in the first embodiment.
[0048] After the RPA reaction, 5 μl of the amplified product was detected by 2% agarose gel electrophoresis. If the RPA characteristic band appeared, it was judged as positive, and if no amplified band appeared, it was judged as negative. Test results such as image 3 Shown: Sensitive detection of sweet potato leafroll virus RPA, the characteristic band of RPA appeared in agarose gel electrophoresis, and the detecti...
PUM
Property | Measurement | Unit |
---|---|---|
Sensitivity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com