Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and kit for detecting acetylcholin esterase A201S mutation and drug resistance of tomato leaf miners

A technology of cholinesterase, moth acetyl, applied in the field of molecular biology

Pending Publication Date: 2021-12-10
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a lack of rapid detection methods for the A201S mutation in the tomato leafminer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and kit for detecting acetylcholin esterase A201S mutation and drug resistance of tomato leaf miners
  • Method and kit for detecting acetylcholin esterase A201S mutation and drug resistance of tomato leaf miners
  • Method and kit for detecting acetylcholin esterase A201S mutation and drug resistance of tomato leaf miners

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1: Cloning of Tomato Acety Acoury Esterase Ace Estera AcE-1 Gene

[0053] 1. Senior sequence clone of the tomato sub-acetyl cholecence esterase ACE-1 gene mRNA coding area

[0054] (1) Total RNA extraction

[0055] The 3-year-old larvae 5 head was placed in a 1.5 ml centrifuge tube, and the liquid nitrogen treatment was used to ground it into a powder, then RNA was extracted using Trizol method, and stored at -80 ° C for standby.

[0056] (2) CDNA synthesis

[0057] According to the reverse transcription kit (Easyscript first-strand cDNA Synthesis Supermix), the reverse transcription synthesis cDNA, and stores to be stored in alternate.

[0058] (3) Design of amplification primers by mRNA coding area

[0059] On the basis of transcription group sequencing, two pairs of primers ACE-1-F1 and ACE-1-R1, ACE-1-F2 and Ace-1-R2 were designed with Oligo 7 software to amplify tomato submerged pulp Ace-1 gene mRNA. Code sequence, its sequence is:

[0060] ACE-1-F1: 5'-AtcgTGG...

Embodiment 2

[0078] Example 2: TaqMan-MGB detection method of acetylcholine esterase gene mutation A201S

[0079] 1.A201S mutation TAQMAN-MGB method detection and synthesis of specific primers and specific probes

[0080] On the basis of obtaining the a201s mutant site of the ACE-1 gene, the A201S mutation site of the ACE-1 gene is designed and synthesized for the A201S mutant site of the ACE-1 gene, and synthesized the A201S mutant site of the ACE-1 gene. The A201SF and A201SR are located in the region of the genomic structure, and PCR amplification can be performed in genomic DNA as a template. The amplification product is 88 bp, and the amplified special primer sequence is:

[0081] A201SF: 5'-TatttggaggtaAccccCaca-3 '

[0082] A201SR: 5'-acaatggagagacagcaaatgaag-3 '

[0083] For the case of the two alleles of the tomato sub-moth A201S mutant site, two specific probes for TAQMan-MGB detection were designed based on its sequence characteristics, respectively for two allele types. The A201SPR...

Embodiment 3

[0110] Example 3: TAQMAN-MGB method detection of organophosphorus resistance of the main intrusion population of tomatoes

[0111] (1) Collection of tomatoes and DNA extraction

[0112] In 2017-2019, my country Tomato Louisi Moth main invasion area Xinjiang (Boltara, Yili) and Yunnan (Yuxi, Linyi, Dehong) in the field population, a total of 240 tomato lubs Samples were used to detect resistant mutations of its organophosphorus resistance-related gene acetylcholine esterase. The genomic DNA to be identified was extracted to obtain a genomic DNA solution, which was stored at -20 ° C.

[0113] (2) TAQMAN-MGB method detection

[0114] The TAQMAN-MGB detection method established by Example 2 was used to detect the A201S site mutation of the tomato sub-moth population of tomato in the above region. In particular, PCR amplification is performed using amplified special primers A201SF and A201SR, and identification of A201S mutation genotypes using specific probes A201SPR and A201SPs. The ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of agricultural biology, and particularly relates to a method and kit for detecting acetylcholin esterase A201S mutation and drug resistance of tomato leaf miners. The invention discloses a TaqMan-MGB detection method of A201S mutation and a corresponding specific primer pair and probe for the first time. Through the TaqMan-MGB amplification reaction, the genotype of an A201S site of the insect can be simply, conveniently and reliably identified, and a homozygous wild type, a homozygous mutant type and a heterozygous mutant type can be specifically distinguished. The invention makes up the blank in the field of drug resistance molecule detection of the tomato leaf miners, and the technology has the advantages of strong specificity, high sensitivity, low price, high throughput, high stability and the like. The method and the kit can be used for detecting the allele frequency of the drug-resistant mutation A201S of the tomato leaf miners, is beneficial for quickly monitoring the development trend of the drug resistance of field population of the tomato leaf miners to organophosphorus insecticides, and provides technical support for delaying and controlling the drug resistance of the tomato leaf miners.

Description

Technical field [0001] The present invention belongs to the field of molecular biology, and in particular, the present invention relates to a method and kit for detecting acetyl cholecence esterase A201S mutation and drug resistance of tomato submergence. Background technique [0002] The Tomato Leaf Miner Tuta Absoluta (Meyrick) belly wings LePidoptera, Mrothertic Glechiidae, originating in South America, is a worldwide tomato destruction of my country. The host has a wide range of hosts, which harms a variety of vegetables, fruits, food crops and tobacco. It is mainly based on larvae, or forady fruit, roof buds, tender branches, tender stems, etc., causing more than 80% to damage Even undertakes. [0003] Chemical agents are one of the most important means of preventing tomato dubes. However, the large-scale sustained use of pharmaceuticals leads to populations of different regions to organic phosphorus, pyrethroid, amazin, amide, multi-bacteria, and maidens, etc. have differen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/6888C12Q1/6858
CPCC12Q1/6888C12Q1/6858C12Q2600/156C12Q2600/124C12Q2600/106C12Q2531/113C12Q2561/101
Inventor 张桂芬王玉生张毅波刘万学冼晓青万方浩
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI