Genetic Variation in Chrysanthemum for Resistance to Western Flower Thrips and Thrips tabaci

1995 ◽  
pp. 403-406 ◽  
Author(s):  
Kitty M. de Jager ◽  
Roland P. T. Butôt ◽  
Adriaan Guldemond
Keyword(s):  
Genetic Variation ◽  
Western Flower Thrips ◽  
Thrips Tabaci ◽  
Flower Thrips

scholarly journals Complexity and local specificity of the virome associated with tospovirus-transmitting thrips species.

2021 ◽  
Author(s):  
M. Chiapello ◽  
Lara Bosco ◽  
M. Ciuffo ◽  
S. Ottati ◽  
N. Salem ◽  
...  
Keyword(s):  
Frankliniella Occidentalis ◽  
High Throughput Sequencing ◽  
Western Flower Thrips ◽  
Thrips Tabaci ◽  
Model Systems ◽  
Horticultural Crops ◽  
Flower Thrips ◽  
Thrips Species ◽  
Repeated Sampling ◽  
Neohydatothrips Variabilis

Frankliniella occidentalis (western flower thrips=WFT) and Thrips tabaci (onion thrips=OT) are insect species that greatly impact horticultural crops through direct damage and their efficient vectoring of tomato spotted wilt virus and iris yellow spot virus. In this study we collected thrips of these species from 12 field populations in various regions in Italy. We also included one field population of Neohydatothrips variabilis (soybean thrips=ST) from the U.S.A. Total RNAseq from high-throughput sequencing (HTS) was used to assemble the virome and then we assigned putative viral contigs to each thrips sample by qRT-PCR. Excluding plant and fungal viruses, we were able to identify 61 viral segments, corresponding to 41 viruses: 14 were assigned to WFT, 17 to OT, one from ST and 9 viruses could not be assigned to any species based on our stringent criteria. All these viruses are putative representative of new species (with only the exception of a sobemo-like virus that is 100% identical to a virus recently characterized in ST) and some belong to new higher-ranking taxa. These additions to the viral phylogeny suggest previously undescribed evolutionary niches. Most of the Baltimore’s classes of RNA viruses were present (positive- and minus- strand and dsRNA viruses), but only one DNA virus was identified in our collection. Repeated sampling in a subset of locations in 2019 and 2020 and further virus characterization in a subset of four thrips populations maintained in laboratory allowed us to provide evidence of a locally persistent thrips core virome that characterizes each population. IMPORTANCE Harnessing the insect microbiome can result in new approaches to contain their populations or the damage they cause vectoring viruses of medical, veterinary, or agricultural importance. Persistent insect viruses are a neglected component of their microbiota. Here for the first time, we characterize the virome associated with the two model systems for tospovirus-transmitting thrips species, of utmost importance for the direct and indirect damage they cause to a number of different crops. The thrips virome here characterized includes several novel viruses, that in some cases reveal previously undescribed clades. More importantly, some of the viruses we describe are part of a core virome that is specific and consistently present in distinct geographical locations monitored over the years, hinting at a possible mutualistic symbiotic relationship with their host.

scholarly journals Onion Thrips,Thrips tabaci, Have Gut Bacteria That are Closely Related to the Symbionts of the Western Flower Thrips,Frankliniella occidentalis

2008 ◽  
Vol 8 (23) ◽  
pp. 1-11 ◽  
Author(s):  
Egbert J. de Vries ◽  
André W. G. van der Wurff ◽  
Gerrit Jacobs ◽  
Johannes A. J. Breeuwer
Keyword(s):  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Gut Bacteria ◽  
Thrips Tabaci ◽  
Onion Thrips ◽  
Flower Thrips

scholarly journals Optimization of dietary RNA interference delivery to western flower thrips Frankliniella occidentalis and onion thrips Thrips tabaci

2019 ◽  
Vol 103 (3) ◽  
Author(s):  
Awawing A. Andongma ◽  
Carolyn Greig ◽  
Paul J. Dyson ◽  
Natasha Flynn ◽  
Miranda M. A. Whitten
Keyword(s):  
Rna Interference ◽  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Thrips Tabaci ◽  
Onion Thrips ◽  
Flower Thrips

scholarly journals Evaluation of new volatile compounds as lures for western flower thrips and onion thrips in New Zealand and Spain

2014 ◽  
Vol 67 ◽  
pp. 175-183 ◽  
Author(s):  
D.A.J. Teulon ◽  
C. Casta?? ◽  
M-C Nielsen ◽  
A.M. El-Sayed ◽  
M.M. Davidson ◽  
...  
Keyword(s):  
New Zealand ◽  
Volatile Compounds ◽  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Field Trials ◽  
Thrips Tabaci ◽  
Onion Thrips ◽  
Flower Thrips ◽  
Water Traps ◽  
White Water

Two glasshouse trials in a capsicum crop near Warkworth New Zealand in January 2011 and two field trials in a nectarine orchard near Lleida Spain in July 2013 were undertaken to determine if trap capture of Frankliniella occidentalis (western flower thrips WFT) and Thrips tabaci (onion thrips OT) could be increased by alternative volatile compounds beyond the known thrips attractant methyl isonicotinate (MI) On blue sticky board traps in the crop in New Zealand none of six alternative compounds tested caught more thrips (mostly WFT OT and two other species) than the Control traps In contrast to MI catches with the alternative lures were mostly significantly lower For both trials in the orchard in Spain using white water traps the highest numbers of WFT and OT were caught higher than most of the nine alternative odour compounds tested

A Survey of Thrips (Thysanoptera) Species Infesting Cotton Seedlings in Alabama, Arkansas, Georgia, Louisiana, Mississippi, and Tennessee

2003 ◽  
Vol 38 (4) ◽  
pp. 669-681 ◽  
Author(s):  
Donald R. Cook ◽  
Charles T. Allen ◽  
Eugene Burris ◽  
Barry L. Freeman ◽  
Gary A. Herzog ◽  
...  
Keyword(s):  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Common Species ◽  
Thrips Tabaci ◽  
Flower Thrips ◽  
Thrips Species ◽  
Tobacco Thrips ◽  
Plant Emergence ◽  
Neohydatothrips Variabilis ◽  
Soybean Thrips

The common species of thrips that are considered pests of cotton, Gossypium hirsutum (L.), include flower thrips, Frankliniella tritici (Fitch); tobacco thrips, Frankliniella fusca (Hinds); western flower thrips, Frankliniella occidentalis (Pergande); onion thrips, Thrips tabaci (Lindeman); and soybean thrips, Neohydatothrips variabilis (Beach). Thrips feeding on cotton seedlings can inhibit plant growth, reduce plant stand, delay crop maturity, and reduce seed-cotton yield. Surveys were conducted in Alabama, Arkansas, Georgia, Louisiana, Mississippi, and Tennessee to determine the thrips species infesting cotton seedlings during 1996 to 1999. Cotton seedlings were sampled weekly between 7 and 48 days after plant emergence at one to four field sites in each state. Over 12,000 thrips adults were collected using plant washing procedures with 9,005 individuals mounted on slides, and identified to species. The tobacco thrips was the most common species collected in all states, except Georgia, and comprised at least 63% of the thrips adults in all instances, except four. The occurrence of flower thrips and soybean thrips was variable; however, neither species accounted for more than 21% of thrips identified in each state. Western flower thrips accounted for less than 15% of adults collected in all instances except two (28% and 30%) in Louisiana. Also, individual specimens of Thrips nigropilosus Uzel and Anophothrips obscurus Müller were collected in Alabama, and several specimens of Microcephalothrips abdominalis (Crawford) were collected in Arkansas and Louisiana.

scholarly journals Response of Frankliniella occidentalis and Thrips tabaci to thrips lures in California

2016 ◽  
Vol 69 ◽  
pp. 322-322
Author(s):  
M-C. Nielsen ◽  
R.C. Butler ◽  
D.A.J. Teulon
Keyword(s):  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Field Trials ◽  
Thrips Tabaci ◽  
Onion Thrips ◽  
Flower Thrips ◽  
Air Temperatures ◽  
Baited Traps ◽  
Close Proximity ◽  
The University

Two field trials were undertaken in a fallow field adjacent to citrus trees at Agricultural Operations at the University of California Riverside (CA) USA to examine the efficacy of 14 chemical lures for attracting western flower thrips (WFT) Frankliniella occidentalis (Pergande) and onion thrips (OT) Thrips tabaci Lindeman to yellow sticky traps over 24 hours Air temperatures during the two trials ranged from 16 to 36oC In both trials traps with methyl isonicotinate caught significantly more (x28 and x34 respectively) female WFT than traps without lures No other chemical lure tested caught as many WFT as the methyl isonicotinatebaited traps In trial 1 traps with ethyl isonicotinate (not included in bioassay 2) caught significantly more female OT (x40) than traps without lures No other chemical lure tested caught as many OT as the ethyl isonicotinatebaited traps Because of the close proximity of the traps (10 m between traps) control traps were expected to have been influenced by odour from baited traps thereby reducing the apparent efficacy of the baited traps

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