FN Archimer Export Format
PT J
TI High dispersal capacity of Culicoides obsoletus (Diptera: Ceratopogonidae), vector of bluetongue and Schmallenberg viruses, revealed by landscape genetic analyses
BT 
AF Mignotte, Antoine
   Garros, Claire
   Dellicour, Simon
   Jacquot, Maude
   Gilbert, Marius
   Gardès, Laetitia
   Balenghien, Thomas
   Duhayon, Maxime
   Rakotoarivony, Ignace
   de Wavrechin, Maïa
   Huber, Karine
AS 1:1,2;2:1,2;3:3,4;4:3,5;5:3;6:1,6;7:1,7,8;8:1,2;9:1,2;10:1,2;11:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;
C1 ASTRE, Univ Montpellier, Cirad, INRAE, Montpellier, France
   Cirad, UMR ASTRE, 34398, Montpellier, France
   Spatial Epidemiology Lab (SpELL), Université Libre de Bruxelles, CP160/12, 50, av. FD Roosevelt, 1050, Bruxelles, Belgium
   Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
   UMR EPIA, Université Clermont Auvergne, INRAE, VetAgro Sup, 63122, Saint-Genès-Champanelle, France
   Cirad, UMR ASTRE, 97170, Petit-Bourg, Guadeloupe, France
   Cirad, UMR ASTRE, 10100, Rabat, Morocco
   Unité Microbiologie, immunologie et maladies contagieuses, Institut Agronomique et Vétérinaire Hassan II, 10100, Rabat-Instituts, Morocco
C2 UNIV MONTPELLIER, FRANCE
   CIRAD, FRANCE
   UNIV LIBRE BRUXELLES, BELGIUM
   UNIV LEUVEN, BELGIUM
   UNIV CLERMONT AUVERGNE, FRANCE
   CIRAD, FRANCE
   CIRAD, MOROCCO
   IAV HASSAN II, MOROCCO
IN DOAJ
IF 4.052
TC 14
UR https://archimer.ifremer.fr/doc/00678/79022/81428.pdf
   https://archimer.ifremer.fr/doc/00678/79022/81429.xlsx
   https://archimer.ifremer.fr/doc/00678/79022/81430.xlsx
   https://archimer.ifremer.fr/doc/00678/79022/81431.xlsx
   https://archimer.ifremer.fr/doc/00678/79022/81432.xlsx
   https://archimer.ifremer.fr/doc/00678/79022/81433.eps
   https://archimer.ifremer.fr/doc/00678/79022/81434.eps
   https://archimer.ifremer.fr/doc/00678/79022/81435.eps
   https://archimer.ifremer.fr/doc/00678/79022/81440.xlsx
   https://archimer.ifremer.fr/doc/00678/79022/81441.eps
   https://archimer.ifremer.fr/doc/00678/79022/81442.eps
   https://archimer.ifremer.fr/doc/00678/79022/81443.eps
   https://archimer.ifremer.fr/doc/00678/79022/81444.xlsx
LA English
DT Article
DE ;Culicoides obsoletus;Landscape genetics;Microsatellite;Dispersal;Palearctic region
AB Background In the last two decades, recurrent epizootics of bluetongue virus and Schmallenberg virus have been reported in the western Palearctic region. These viruses affect domestic cattle, sheep, goats and wild ruminants and are transmitted by native hematophagous midges of the genus Culicoides (Diptera: Ceratopogonidae). Culicoides dispersal is known to be stratified, i.e. due to a combination of dispersal processes occurring actively at short distances and passively or semi-actively at long distances, allowing individuals to jump hundreds of kilometers. Methods Here, we aim to identify the environmental factors that promote or limit gene flow of Culicoides obsoletus, an abundant and widespread vector species in Europe, using an innovative framework integrating spatial, population genetics and statistical approaches. A total of 348 individuals were sampled in 46 sites in France and were genotyped using 13 newly designed microsatellite markers. Results We found low genetic differentiation and a weak population structure for C. obsoletus across the country. Using three complementary inter-individual genetic distances, we did not detect any significant isolation by distance, but did detect significant anisotropic isolation by distance on a north-south axis. We employed a multiple regression on distance matrices approach to investigate the correlation between genetic and environmental distances. Among all the environmental factors that were tested, only cattle density seems to have an impact on C. obsoletus gene flow. Conclusions The high dispersal capacity of C. obsoletus over land found in the present study calls for a re-evaluation of the impact of Culicoides on virus dispersal, and highlights the urgent need to better integrate molecular, spatial and statistical information to guide vector-borne disease control. 
PY 2021
PD FEB
SO Parasites & Vectors
SN 1756-3305
PU Springer Science and Business Media LLC
VL 14
IS 1
UT 000616753900001
DI 10.1186/s13071-020-04522-3
ID 79022
ER

EF