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Lookup NU author(s): Ali Kareem, Dr Samuel LoganORCiD, Dr Gordon Port, Dr Kirsten Wolff
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Wiley-Blackwell Verlag GmbH, 2020.
For re-use rights please refer to the publisher's terms and conditions.
Whiteflies (Hemiptera: Aleyrodidae) are major pests of many crops worldwide. Bemisia tabaci is a cryptic species complex composed of more than 39 putative species. Understanding which putative species of B. tabaci are predominant in an area is vital for effective pest management since they may vary considerably with respect to insecticide resistance, host plant range and virus transmission. Here, for the first time, the genetic diversity, the symbiont diversity and population structure of B. tabaci in Iraq were studied. Fourteen populations were analysed using mitochondrial cytochrome C oxidase subunit 1 (mtCO1) sequencing and microsatellite genotyping. Symbiotic bacteria were identified using 16S rRNA and 23S rRNA sequencing. MtCO1 sequencing detected two putative species of B. tabaci. The predominant putative species in Iraq was Middle East‐Asia Minor (MEAM) 1 subcladeB2. In addition, one individual was MEAM1‐subcladeB. The second putative species was a single individual of MEAM2. The microsatellite data indicated low genetic diversity, with no biologically informative clustering. All MEAM1 individuals harboured one primary symbiont, Portiera aleyrodidarum, and most (96%) have two secondary symbionts: Hamiltonella sp. and Rickettsia sp. This study has identified the genetic diversity and population structure of B. tabaci in Iraq. Further investigation is needed to update the pest status of B. tabaci in this region. The current data, combined with investigations into the capacity of the various putative species to transmit plant viruses, especially tomato yellow leaf curl virus, will aid pest management and horticultural production.
Author(s): Kareem AA, Logan SA, Port G, Wolff K
Publication type: Article
Publication status: Published
Journal: Journal of Applied Entomology
Year: 2020
Volume: 144
Issue: 4
Pages: 297-307
Print publication date: 01/05/2020
Online publication date: 23/02/2020
Acceptance date: 09/01/2020
Date deposited: 16/03/2020
ISSN (print): 0931-2048
ISSN (electronic): 1439-0418
Publisher: Wiley-Blackwell Verlag GmbH
URL: https://doi.org/10.1111/jen.12736
DOI: 10.1111/jen.12736
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