title: 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.
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.
authors.affiliation: Center for Plant Health Science and Technology, Mission Laboratory, USDA-APHIS, Moore Air Base, Edinburg, TX 78541, USA. norman.b.barr@aphis.usda.gov
authors.forename: N B
authors.initials: NB
authors.lastname: Barr
authors.forename: D G
authors.initials: DG
authors.lastname: Hall
authors.forename: A A
authors.initials: AA
authors.lastname: Weathersbee
authors.forename: R
authors.initials: R
authors.lastname: Nguyen
authors.forename: P
authors.initials: P
authors.lastname: Stansly
authors.forename: J A
authors.initials: JA
authors.lastname: Qureshi
authors.forename: D
authors.initials: D
authors.lastname: Flores
mesh_terms: D000818:Animals; D001208:Asia; D002957:Citrus / Q000469:parasitology; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D003576:Electron Transport Complex IV / Q000235:genetics*; D049810:Genetic Speciation; D014644:Genetic Variation; D006430:Hemiptera / Q000469:parasitology*; D006790:Host-Parasite Interactions; D032101:Murraya / Q000469:parasitology; D010572:Pest Control, Biological; D014863:Wasps / Q000235:genetics*
chemical_list: D021903:DNA, Ribosomal Spacer; D003576:Electron Transport Complex IV