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Multiple parasites mediate balancing selection at two MHC class II genes in the fossorial water vole: insights from multivariate analyses and population genetics Inra
Tollenaere, C.; Bryja, J.; Galan, M.; Cadet, P.; Deter, J.; Chaval, Y.; Berthier, K.; Ribas Salvador, A.; Voutilainen, L.; Laakkonens, J.; Cosson, J.F.; Charbonnel, N..
We investigated the factors mediating selection acting on two MHC class II genes (DQA and DRB) in water vole (Arvicola scherman) natural populations in the French Jura Mountains. Population genetics showed significant homogeneity in allelic frequencies at the DQA1 locus as opposed to neutral markers (nine microsatellites), indicating balancing selection acting on this gene. Moreover, almost exhaustive screening for parasites, including gastrointestinal helminths, brain coccidia and antibodies against viruses responsible for zoonoses, was carried out. We applied a co-inertia approach to the genetic and parasitological data sets to avoid statistical problems related to multiple testing. Two alleles, Arte-DRB-11 and Arte-DRB-15, displayed antagonistic...
Tipo: Journal Article Palavras-chave: IMMUNOGENETIQUE; CO-INERTIE; GENES MHC; ANALYSE MULTIVARIEE CO-INERTIA; DQA AND DRB MHC GENES; IMMUNOGENETICS; MULTIVARIATE ANALYSIS; PARASITE-MEDIATED BALANCING SELECTION.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20091657fa4b&uri=/notices/prodinra1/2011/06/
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