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Comparison of Laboratory Colonies and Field Populations of Tamarixia radiata, an Ectoparasitoid of the Asian Citrus Psyllid, Using Internal Transcribed Spacer and Cytochrome Oxidase Subunit I DNA Sequences

Permanent URL:
http://handle.nal.usda.gov/10113/39418
File:
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Abstract:
The genetic diversity of Tamarixia radiata Waterston (Hymenoptera: Eulophidae) laboratory colonies derived from collections in China, northern Vietnam, Pakistan, and a mixed colony from Taiwan and southern Vietnam was evaluated using the internal transcribed spacer (ITS) region 1, ITS-2, and the 5′ end of the cytochrome oxidase subunit I gene. The strains share the same ITS sequence, consistent with the morphological hypothesis that the collections represent a single species. The COI marker was variable and could distinguish the northern Vietnam and Pakistan colonies from each other and from the other colonies. Comparison of COI sequences from field-collected populations of Puerto Rico, Guadeloupe, and Texas indicates that Florida is not a likely source of the introduction into Puerto Rico but is a likely source of the introduction into Texas.
Author(s):
Barr, N.B. , Hall, D.G. , Weathersbee, A.A. III , Nguyen, R. , Stansly, P. , Qureshi, J.A. , Flores, D.
Subject(s):
insect pests , Diaphorina citri , plant pests , citrus fruits , greening disease , insect vectors , insect control , biological control , parasitoids , ectoparasites , Tamarixia , strains , genetic variation , insect genetics , genes , cytochrome-c oxidase , internal transcribed spacers , genetic markers , evolution , reproductive isolation , geographical variation , geographical distribution , biological control agents
Format:
p. 2325-2332.
Note:
Includes references
Source:
Journal of economic entomology 2009 Dec., v. 102, no. 6
Language:
English
Year:
2009
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.