Thesis
Identification of Lygus bugs by DNA barcoding for integrated pest management
Washington State University
Master of Science (MS), Washington State University
2011
Handle:
https://hdl.handle.net/2376/102655
Abstract
The western tarnished plant bug Lygus hesperus is an economically important pest that belongs to a complex of morphologically similar species that makes identification problematic. The present study provides evidence for the use of DNA barcodes from populations of L. hesperus from the western United States of America for accurate identification. This study reports DNA barcodes for 134 individuals of the western tarnished plant bug from alfalfa and strawberry agricultural fields in the western United States of America. Sequence divergence estimates of Fst and subsequent estimates of gene flow show that geographically distinct populations of L. hesperus are genetically similar. Therefore, the results suggest that widespread movement and population interbreeding of the western tarnished plant bug in diverse wild and agricultural habitats is common. This study reveals the widespread interbreeding and diverse host plant usage of a phenotypically plastic and habitat diverse insect pest across a wide geographic area using DNA barcoding.
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Details
- Title
- Identification of Lygus bugs by DNA barcoding for integrated pest management
- Creators
- Changqing Zhou
- Contributors
- Laura S. Lavine (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Entomology, Department of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; Pullman, Wash. :
- Identifiers
- 99900525004601842
- Language
- English
- Resource Type
- Thesis