Secondary contact and admixture between independently invading populations of the western corn rootworm, Diabrotica virgifera virgifera in Europe.

The western corn rootworm, Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae), is one of the most destructive pests of corn in North America and is currently invading Europe. The two major invasive outbreaks of rootworm in Europe have occurred, in North-West Italy and in Central and South-Ea...

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Autores principales:	Gérald Bermond, Marc Ciosi, Eric Lombaert, Aurélie Blin, Marco Boriani, Lorenzo Furlan, Stefan Toepfer, Thomas Guillemaud
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/38e3b7d2a0dd43b19806376868badbd5
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spelling	oai:doaj.org-article:38e3b7d2a0dd43b19806376868badbd52021-11-18T08:07:35ZSecondary contact and admixture between independently invading populations of the western corn rootworm, Diabrotica virgifera virgifera in Europe.1932-620310.1371/journal.pone.0050129https://doaj.org/article/38e3b7d2a0dd43b19806376868badbd52012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23189184/?tool=EBIhttps://doaj.org/toc/1932-6203The western corn rootworm, Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae), is one of the most destructive pests of corn in North America and is currently invading Europe. The two major invasive outbreaks of rootworm in Europe have occurred, in North-West Italy and in Central and South-Eastern Europe. These two outbreaks originated from independent introductions from North America. Secondary contact probably occurred in North Italy between these two outbreaks, in 2008. We used 13 microsatellite markers to conduct a population genetics study, to demonstrate that this geographic contact resulted in a zone of admixture in the Italian region of Veneto. We show that i) genetic variation is greater in the contact zone than in the parental outbreaks; ii) several signs of admixture were detected in some Venetian samples, in a bayesian analysis of the population structure and in an approximate bayesian computation analysis of historical scenarios and, finally, iii) allelic frequency clines were observed at microsatellite loci. The contact between the invasive outbreaks in North-West Italy and Central and South-Eastern Europe resulted in a zone of admixture, with particular characteristics. The evolutionary implications of the existence of a zone of admixture in Northern Italy and their possible impact on the invasion success of the western corn rootworm are discussed.Gérald BermondMarc CiosiEric LombaertAurélie BlinMarco BorianiLorenzo FurlanStefan ToepferThomas GuillemaudPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 11, p e50129 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gérald Bermond Marc Ciosi Eric Lombaert Aurélie Blin Marco Boriani Lorenzo Furlan Stefan Toepfer Thomas Guillemaud Secondary contact and admixture between independently invading populations of the western corn rootworm, Diabrotica virgifera virgifera in Europe.
description	The western corn rootworm, Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae), is one of the most destructive pests of corn in North America and is currently invading Europe. The two major invasive outbreaks of rootworm in Europe have occurred, in North-West Italy and in Central and South-Eastern Europe. These two outbreaks originated from independent introductions from North America. Secondary contact probably occurred in North Italy between these two outbreaks, in 2008. We used 13 microsatellite markers to conduct a population genetics study, to demonstrate that this geographic contact resulted in a zone of admixture in the Italian region of Veneto. We show that i) genetic variation is greater in the contact zone than in the parental outbreaks; ii) several signs of admixture were detected in some Venetian samples, in a bayesian analysis of the population structure and in an approximate bayesian computation analysis of historical scenarios and, finally, iii) allelic frequency clines were observed at microsatellite loci. The contact between the invasive outbreaks in North-West Italy and Central and South-Eastern Europe resulted in a zone of admixture, with particular characteristics. The evolutionary implications of the existence of a zone of admixture in Northern Italy and their possible impact on the invasion success of the western corn rootworm are discussed.
format	article
author	Gérald Bermond Marc Ciosi Eric Lombaert Aurélie Blin Marco Boriani Lorenzo Furlan Stefan Toepfer Thomas Guillemaud
author_facet	Gérald Bermond Marc Ciosi Eric Lombaert Aurélie Blin Marco Boriani Lorenzo Furlan Stefan Toepfer Thomas Guillemaud
author_sort	Gérald Bermond
title	Secondary contact and admixture between independently invading populations of the western corn rootworm, Diabrotica virgifera virgifera in Europe.
title_short	Secondary contact and admixture between independently invading populations of the western corn rootworm, Diabrotica virgifera virgifera in Europe.
title_full	Secondary contact and admixture between independently invading populations of the western corn rootworm, Diabrotica virgifera virgifera in Europe.
title_fullStr	Secondary contact and admixture between independently invading populations of the western corn rootworm, Diabrotica virgifera virgifera in Europe.
title_full_unstemmed	Secondary contact and admixture between independently invading populations of the western corn rootworm, Diabrotica virgifera virgifera in Europe.
title_sort	secondary contact and admixture between independently invading populations of the western corn rootworm, diabrotica virgifera virgifera in europe.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/38e3b7d2a0dd43b19806376868badbd5
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Secondary contact and admixture between independently invading populations of the western corn rootworm, Diabrotica virgifera virgifera in Europe.

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