Host-associated genetic differentiation in Thrips tabaci (Insecta; Thysanoptera), as determined from mtDNA sequence data

Heredity
P C BrunnerJuerg E Frey

Abstract

We tested for host-associated genetic differentiation in 22 populations of Thrips tabaci collected from tobacco and leek, respectively. Clustering analyses and haplotype networks based on sequence variation at a fragment of the mitochondrial cytochrome oxidase I gene yielded three major evolutionary lineages; two were clearly associated with leek and the third with tobacco. These genetic findings corroborated recent experimental observations on the heterogeneity of T. tabaci populations with regard to host-plant preference and their capacity to be vectors for tomato spotted wilt virus. Estimated divergence times suggested an ancient divergence of these lineages dating back to the Miocene 28-21 million years ago. F(ST) values between these lineages ranged between 0.824 and 0.954 (P<0.001 for all comparisons), and sequence divergences ranged between 4 and 11%. Given these findings and by the standards of genetic and ecological differentiation in other published species groups, T. tabaci must be considered a complex of cryptic (sub)species.

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Citations

May 18, 2013·Bulletin of Entomological Research·K B RebijithV V Ramamurthy
Dec 8, 2005·Annual Review of Entomology·Joseph G Morse, Mark S Hoddle
Aug 2, 2013·Journal of Insect Science·Kazuya Kobayashi, Eisuke Hasegawa
Aug 30, 2016·Indian Journal of Microbiology·Gunjan Kumar SauravRaman Rajagopal
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Mar 30, 2010·Journal of Evolutionary Biology·A M Dickey, R F Medina
Apr 2, 2016·Scientific Reports·Kazuya Kobayashi, Eisuke Hasegawa
Aug 11, 2015·Ecology and Evolution·Josephine B AntwiRaul F Medina
Dec 21, 2004·Journal of Medical Entomology·Simone Frédérique BrenièreCristina Wisnivesky-Colli
Dec 10, 2019·Bulletin of Entomological Research·Péter FarkasJózsef Fail
Oct 16, 2015·Journal of Economic Entomology·Isaac MachariaJagger Harvey
Feb 28, 2019·EFSA Journal·UNKNOWN EFSA Panel on Plant Health (EFSA PLH Panel)Alan MacLeod

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