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Where do they come from? where do they go ? Population genetics studies on Culicoides biting midges

Huber Karine, Jacquet Stéphanie, Gardes Laëtitia, Mignotte Antoine, Balenghien Thomas, Bouyer Jérémy, Garros Claire. 2017. Where do they come from? where do they go ? Population genetics studies on Culicoides biting midges. In : Sove 2017 New technology conquering old vectors?. SOVE, UIB. Palma de Mallorque : SOVE, p. 133. ISBN 978-84-697-6086-4 International SOVE congress: New technology conquering old vectors?. 7, Palma de Mallorque, Espagne, 1 October 2017/7 October 2017.

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Matériel d'accompagnement : 1 diaporama (20 vues)

Abstract : Determining and understanding the factors underlying the genetic diversity of vector species or invasion success of species allow predicting potential other biological invasion, assess vector competence of isolated taxonomic units and develop more accurate epidemiological models. Although the role of winds and local air movements have an undeniable role in the dispersal of Culicoides, anthropogenic factors also play a predominant role, particularly at the local level (distribution of hosts, landscape structure). The influence of these different factors will also be modulated according to the species considered, which have different host preferences and larval ecology. It is therefore crucial to understand the relative importance of the different modes of dispersal of the Culicoides and the influence of the biotic and abiotic factors influencing it. Using several examples with the Afrotropical vector species Culicoides imicola in the Mediterranean basin and autochthonous Palearctic vector species Culicoides obsoletus and C. chiopterus, we will present studies that characterize the main factors explain the genetic diversity over the spatial range of important vector species of viruses to livestock and equines. This presentation will also highlight the need for integrative work using multi-loci approach combining population genetics analyses, ABC methods and mathematical modeling of dispersion. (Texte integral)

Classification Agris : L72 - Pests of animals
U10 - Computer science, mathematics and statistics

Auteurs et affiliations

  • Huber Karine, INRA (FRA)
  • Jacquet Stéphanie
  • Gardes Laëtitia, CIRAD-BIOS-UMR ASTRE (FRA)
  • Mignotte Antoine, CIRAD-BIOS-UMR ASTRE (FRA)
  • Balenghien Thomas, CIRAD-BIOS-UMR ASTRE (MAR)
  • Bouyer Jérémy, CIRAD-BIOS-UMR ASTRE (AUT) ORCID: 0000-0002-1913-416X
  • Garros Claire, CIRAD-BIOS-UMR ASTRE (REU) ORCID: 0000-0003-4378-5031

Source : Cirad-Agritrop (https://agritrop.cirad.fr/585765/)

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