Stink Bug 19

Sample information

Picture
Photos by: Brenden S.
Location
Collection date
Captive / Cultivated? Wild-caught
Group Bluegrass Community and Technical College
Observations

Caught in backyard of residence. The specimen was identified as a stink bug using the iNaturalist app.

Putative identification Arthropoda Hexapoda Insecta Hemiptera Pentatomidae

Methods

Extraction kit DNeasy (Qiagen) blood and tissue kit
DNA extraction location Abdomen
Single or Duplex PCR Single Reaction
Gel electrophoresis system Standard electrophoresis system Bio-Rad
Buffer TAE
DNA stain Ethidium Bromide
Gel images
Protocol notes

GoTaqGreen polymerase was used. Reaction conditions were per Lab 3: PCR (Wolbachia Project Guide) for single reaction PCRs (separate reactions were run with the Wolbachia primers and the cytochrome oxidase primers). The PCR reaction volume was 25 uL. 5 uL of each reaction was run on a 2% agarose gel. The relevant lanes for the specimen are boxed in the gel picture.   

Results

Wolbachia presence No
Confidence level High
Explanation of confidence level

No PCR product was obtained in the reaction using the Wolbachia primers while the reaction using the cytochrome oxidase 1 produced a ~700 bp product, which is the correct size for the CO1 product, indicating the DNA isolated from the specimen is of suitable quality for PCR. All control reactions  worked as they should. The positive control is DNA extracted from a control insect infected with Wolbachia, while the negative control is DNA extracted from an uninfected insect. Both controls were provided by the Wolbachia Project. 

 

 

Wolbachia 16S sequence
The PCR product was not sequenced.
BLAST at The Wolbachia Project   BLAST at NCBI
Arthropod COI sequence
The PCR product was not sequenced.
BLAST at The Wolbachia Project   BLAST at NCBI
Summary The Pentatomidae was found to be negative for Wolbachia.
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