PoplarV1, Main, Exploration, bibRecord, 004779

Population genetics of Chrysomela tremulae: a first step towards management of transgenic Bacillus thuringiensis poplars Populus tremula x .P. tremuloides.

Identifieur interne : 004779 ( Main/Exploration ); précédent : 004778; suivant : 004780

Population genetics of Chrysomela tremulae: a first step towards management of transgenic Bacillus thuringiensis poplars Populus tremula x .P. tremuloides.

Auteurs : A. Génissel [France] ; F. Viard ; D. Bourguet

Source :

Hereditas [ 0018-0661 ] ; 2000.

RBID : pubmed:11338433

Descripteurs français

KwdFr :
- Animaux (MeSH), Bacillus thuringiensis (génétique), Coléoptères (génétique), Coléoptères (microbiologie), Croisements génétiques (MeSH), France (MeSH), Génétique des populations (MeSH), Géographie (MeSH), Rosales (génétique), Rosales (microbiologie), Végétaux génétiquement modifiés (MeSH).
MESH :
- génétique : Bacillus thuringiensis, Coléoptères, Rosales.
- microbiologie : Coléoptères, Rosales.
- Animaux, Croisements génétiques, France, Génétique des populations, Géographie, Végétaux génétiquement modifiés.

English descriptors

KwdEn :
- Animals (MeSH), Bacillus thuringiensis (genetics), Coleoptera (genetics), Coleoptera (microbiology), Crosses, Genetic (MeSH), France (MeSH), Genetics, Population (MeSH), Geography (MeSH), Plants, Genetically Modified (MeSH), Rosales (genetics), Rosales (microbiology).
MESH :
- genetics : Bacillus thuringiensis, Coleoptera, Rosales.
- microbiology : Coleoptera, Rosales.
- Animals, Crosses, Genetic, France, Genetics, Population, Geography, Plants, Genetically Modified.

Abstract

Many strategies have been proposed for delaying the development of insect resistance to Bacillus thuringiensis (Bt). The current paradigm for Bt resistance management is the high dose-refuge strategy. For this strategy to be successful: (i) heterozygotes must be killed in treated areas, (ii) resistant alleles must be rare (frequency < 10-3), and (iii) there must be a high level of gene flow between populations to ensure random mating. We studied gene flow within and between populations with a view to managing the resistance of Chrysomela tremulae (Coleoptera: Chrysomelidae) to new transgenic, highly toxic poplars expressing a synthetic Bt gene. In this study, we assessed the extent of gene flow in C. tremulae within and between 16 sites in France and Belgium, using allozyme markers. We found a high level of genetic variability in C. tremulae, with a mean of 0.206 +/- 0.16. There were no obvious limitations to gene flow between populations of C. tremulae over large geographical distances (several hundreds of kilometres). Nevertheless, a very low level of genetic differentiation was observed between a site located in the south of France and the sampled sites from the Centre region.

DOI: 10.1111/j.1601-5223.2000.00085.x
PubMed: 11338433

Affiliations:

France

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Le document en format XML

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Population genetics of Chrysomela tremulae: a first step towards management of transgenic Bacillus thuringiensis poplars Populus tremula x .P. tremuloides.

Population genetics of Chrysomela tremulae: a first step towards management of transgenic Bacillus thuringiensis poplars Populus tremula x .P. tremuloides.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki