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Genetic and host-associated differentiation within Thrips tabaci Lindeman (Thysanoptera: Thripidae) and its links to Tomato spotted wilt virus-vector competence

Citation

Westmore, GC and Poke, FS and Allen, GR and Wilson, CR, Genetic and host-associated differentiation within Thrips tabaci Lindeman (Thysanoptera: Thripidae) and its links to Tomato spotted wilt virus-vector competence, Heredity, 111, (3) pp. 210-215. ISSN 0018-067X (2013) [Refereed Article]

Copyright Statement

Copyright 2013 Macmillan Publishers Limited

DOI: doi:10.1038/hdy.2013.39

Abstract

Of eight thelytokous populations of onion thrips (Thrips tabaci) collected from potato (three populations), onion (four) or Chrysanthemum (one) hosts from various regions of Australia, only those from potato were capable of transmitting Tomato spotted wilt virus (TSWV) in controlled transmission experiments. Genetic differentiation of seven of these eight populations, and nine others not tested for TSWV vector competence, was examined by comparison of the DNA sequences of mitochondrial cytochrome oxidase subunit 1 (COI) gene. All Australian populations of T. tabaci grouped within the European 'L2' clade of Brunner et al. (2004). Within this clade the seven populations from potato, the three from onion, and the four from other hosts (Chrysanthemum, Impatiens, lucerne, blackberry nightshade) clustered as three distinct sub-groupings characterised by source host. Geographical source of thrips populations had no influence on genetic diversity. These results link genetic differentiation of thelytokous T. tabaci to source host and to TSWV vector capacity for the first time.

Item Details

Item Type:Refereed Article
Keywords:Thrips tabaci, TSWV, vector competence, thelytokous populations
Research Division:Agricultural and Veterinary Sciences
Research Group:Horticultural Production
Research Field:Horticultural Crop Protection (Pests, Diseases and Weeds)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural Crops
Objective Field:Vegetables
Author:Westmore, GC (Mr Guy Westmore)
Author:Poke, FS (Dr Fiona Poke)
Author:Allen, GR (Associate Professor Geoff Allen)
Author:Wilson, CR (Associate Professor Calum Wilson)
ID Code:84667
Year Published:2013
Funding Support:Australian Research Council (LP0667635)
Web of Science® Times Cited:15
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2013-05-24
Last Modified:2015-07-14
Downloads:0

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