A method for detecting the expression of the odorant-binding protein gene obp6 in Apis mellifera using fluorescent RT-PCR

A technology of RT-PCR and odor binding protein, applied in the direction of biochemical equipment and methods, microbe determination/inspection, etc., can solve diseases and parasites in bee breeding process, bee immune system and olfactory system damage, beekeeper Economic loss and other issues, to achieve the effect of shortening the experiment time, avoiding subjectivity, and avoiding pollution

Active Publication Date: 2019-12-17
SERICULTURAL RES INST ANHUI ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it is not possible to fully elucidate how honeybee odorant-binding proteins (OBPs) participate in the olfactory perception mechanism of bees, the physiological and biochemical characteristics and binding characteristics of honeybee odorant-binding proteins have been clarified, which is helpful for grasping the olfactory perception mechanism of bees and explaining how honeybees feel and smell. Identifying odorous substances in the environment and their corresponding behavioral responses have certain guiding significance
[0005] In recent years, due to the excessive use of pesticides in agricultural and forestry production, the widespread use of antibiotics in the process of bee disease control, environmental pollution, interference from human activities, and destruction of vegetation, the ecological environment has been destroyed, and the immune system and olfactory system of bees have been destroyed. , so that bees are frequently attacked by diseases and parasites in the process of breeding, and even in European and American countries, bees have colony collapse syndrome, which has caused huge economic losses to beekeepers

Method used

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  • A method for detecting the expression of the odorant-binding protein gene obp6 in Apis mellifera using fluorescent RT-PCR
  • A method for detecting the expression of the odorant-binding protein gene obp6 in Apis mellifera using fluorescent RT-PCR
  • A method for detecting the expression of the odorant-binding protein gene obp6 in Apis mellifera using fluorescent RT-PCR

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Obtaining the OBP6 gene sequence of the Italian honeybee

[0037] Open the Beebase (http: / / hymenopteragenome.org / beebase / ) database, enter the keyword OBP6 in the search bar, and search for the result of OBP6. Click on OBP6 to get its Beebase database gene number GB15813. Click to enter the gene description page, select the link of the NCBI (https: / / www.ncbi.nlm.nih.gov / ) database, enter NCBI, get the gene number LOC406109, and the mRNA number of Ref-seq is NM-001011593.1, Protein The number is NP-001011593.1, and the CDS (SEQ ID NO.5) and amino acid sequence (SEQ ID NO.6) of OBP6 are obtained.

Embodiment 2

[0039] Extraction of Total RNA from Apis mellifera

[0040] Two groups (three parallel samples in each group) of healthy Italian bees were selected to explore the effect of antibiotics on the expression of OBP6. The three bee colonies in the experimental group were fed for one week according to the instructions for the use of benomyl. The three bee colonies in the experimental group were fed with the same amount of sugar water for one week. After treatment, appropriate amount of Italian worker bees were selected and stored at -80°C.

[0041] (1) Take 10 Italian worker bees and place them in a sterile mortar, pour liquid nitrogen into them and quickly grind them thoroughly with a grinding rod. Set for 5min.

[0042] (2) Add 200 μL of chloroform into the centrifuge tube, shake vigorously for 5-10 minutes, and let stand for 5 minutes.

[0043] (3) Centrifuge at 12,000 rpm for 10 min at 4°C, transfer the upper colorless aqueous phase into a new sterile centrifuge tube, add 500...

Embodiment 3

[0048] cDNA synthesis

[0049] The total RNA of Apis mellifera described in Example 2 was used as a template. Take a sterilized 0.2mL centrifuge tube and add the following reaction system (20μL system):

[0050] (1) Add the following reagents to the nuclease-free PCR tube in ice bath:

[0051]

[0052]

[0053] (2) Gently mix and centrifuge for 3-5s. After incubating the reaction mixture at 65°C for 5 minutes, ice-bath for 2 minutes, and then centrifuge for 3-5s.

[0054] (3) Place the test tube in an ice bath, and then add the following reagents:

[0055] 5×RT Buffer 4.0μL

[0056] Thermo Scientific RiboLock RNase Inhibitor (20U) 0.5μL

[0057] Revert Aid Premium Reverse Transcriptase (200U) 1.0μL

[0058] (4) Gently mix and centrifuge for 3-5s

[0059] (5) Carry out the reverse transcription reaction on the PCR instrument according to the following conditions

[0060] ①Incubate at 25°C for 10 minutes

[0061] ②cDNA synthesis at 50°C for 30min

[0062] ③ Stop t...

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Abstract

The invention discloses a method for detecting expression of an odorant-binding protein gene OBP6 of Italian bees by using fluorescent RT-PCR technology, and particularly relates to the technical field of biology. The method for detecting the expression of the odorant-binding protein gene OBP6 of the Italian bees by using the fluorescent RT-PCR technology comprises the following steps that (1), OBP6 genes are detected by using primers; (2), total RNA extraction is performed; (3), cDNA synthesis is performed; (4), real-time fluorescent PCR is performed; and (5), the relative expression quantityof OBP6 of the Italian bees is calculated before and after benomyl treatment. The real-time fluorescent RT-PCR adopted by the method for detecting the expression of the odorant-binding protein gene OBP6 of the Italian bees by using the fluorescent RT-PCR technology is compared with conventional PCR, and the real-time fluorescent PCR technology collects fluorescent signals by automated instruments, the subjectivity of visual judgment is avoided, and the sensitivity is further improved; and at the same time, the real-time fluorescent RT-PCR technology reacts in a fully closed mode without post-treatment of PCR, pollution is avoided, and the reliability and repeatability of the results are ensured. At the same time, the following tedious steps such as electrophoresis and quantitative scanning in routine PCR are eliminated, and the experiment time is greatly shortened.

Description

Technical field: [0001] The invention relates to the field of biotechnology, and relates to specific primers for detecting the expression of the Apis mellifera odorant-binding protein gene obp6, more specifically a method for detecting the expression of the Apis mellifera odorant-binding protein gene OBP6 by using a fluorescent RT-PCR technique. Background technique: [0002] In the long-term evolution process of insects, the environment they face is highly heterogeneous. The adaptation of insects to the heterogeneous environment is an important driving force for their survival and evolution. In order to survive and reproduce normally, insects must interact with the complex surrounding environment. produced good adaptability. Usually, the information relationship between individual insects and between insects and the environment is mainly regulated by chemical communication. The insect olfactory system is a highly specific and extremely sensitive chemical detector, which can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12Q1/6888C12Q1/686
CPCC12Q1/686C12Q1/6888C12Q2600/158C12Q2561/113C12Q2563/107C12Q2521/107
Inventor 代君君范涛舒蕊刘健章玉萍张丽丽陈明
Owner SERICULTURAL RES INST ANHUI ACADEMY OF AGRI SCI
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