Insect DNA Barcoding. Agenda DNA Bug Barcoding at FLCC Finger Lakes Invertebrate Biodiversity Study (FLIBS) Introduction to Biology (for majors), Research.

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Presentation transcript:

Insect DNA Barcoding

Agenda

DNA Bug Barcoding at FLCC Finger Lakes Invertebrate Biodiversity Study (FLIBS) Introduction to Biology (for majors), Research Methods, Genetics Students surveys show positive response to the lab module

University of California San Diego faculty developed a protocol for DNA barcoding of insects. – Addressing biodiversity questions on and around UCSD campus Adapted protocol for community college setting Bug DNA Barcoding

Morphology Week 1 student lab Use morphology guide to identify bug to order Take picture Remove leg (3-4mm) and place in 1.5mL tube – If small bug use entire bug Need to incubate overnight

DNA Extraction Week 2 student lab Overnight incubations were set up yesterday Follow protocol for QIAGEN DNA Extraction kit DNA filter column chemistry

Mitochondrial cytochrome c oxidase 1 gene (CO1) 648bp Mutation rate is high, so able to distinguish between closely related species Folmer primers – universal invertebrate barcaoding primers PrimerNameSequence ForwardLCO14905'-GGTCAACAAATCATAAAGATATTGG-3' ReverseHCO21985'-TAAACTTCAGGGTGACCAAAAAATCA-3'

PCR Reaction Volume for one reaction (µL) ComponentStock Concentration (µM) 25GoTaq green*na 2.5forward primer10 2.5reverse primer sterile waterna *Promega Gotaq PCR Master mix – M7122

PCR Clean up and Gel Image Week 3 student lab Run 5ul of PCR product on gel Capture image on gel dock CO1 gene is ~648bp Purify the amplified DNA from the PCR reaction following QIAGEN kit protocol

Additional Resources International Barcode of Life Cold Springs Harbor DNA Barcoding Barcode of Life Insect ID website – –