Detecting Specific Resource Use by Drosophila suzukii (Diptera: Drosophilidae) Using Gut Content Analysis
2018
Diepenbrock, Lauren M | Lundgren, Jonathan G. | Sit, Tim L | Burrack, Hannah J
Drosophila suzukii Matsumura (Diptera: Drosophilidae) is an invasive, highly polyphagous pest of soft-skinned fruits throughout much of the world. A better understanding of the ecology of adult flies, including their nutritional resources, is needed to advance ecologically based management approaches. In this study, we evaluate the capability of polymerase chain reaction-based gut content analysis to detect a known food resource from DNA extracted from laboratory-reared flies. Using strawberry as a focal host and available DNA primers, we validated that DNA from this host could be detected for up to 7 d post-consumption. With the development of specific primers for additional hosts, we expect that this technique will enable researchers to better understand how D. suzukii adults use, and move between, nutritional resources.
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