Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 2
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
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/
Imagem não selecionada

Imprime registro no formato completo
Negative relationships between cellular immune response, Mhc class II heterozygosity and secondary sexual trait in the montane water vole Inra
Charbonnel, N.; Bryja, J.; Galan, M.; Deter, J.; Tollenaere, C.; Chaval, Y.; Morand, S.; Cosson, J.F..
Heterogeneities in immune responsiveness may affect key epidemiological parameters and the dynamics of pathogens. The roles of immunogenetics in these variations remain poorly explored. We analysed the influence of Major histocompatibility complex (Mhc) genes and epigamic traits on the response to phytohaemagglutinin in males from cyclic populations of the montane water vole (Arvicola scherman). Besides, we tested the relevance of lateral scent glands as honest signals of male quality. Our results did not corroborate neither the hypotheses of genome-wide heterozygosity-fitness correlation nor the Mhc heterozygote advantage. We found a negative relationship between Mhc hetetozygosity and response to phytohaemagglutinin, mediated by a specific Mhc homozygous...
Tipo: Journal Article Palavras-chave: CAMPAGNOL; IMMUNOECOLOGIE; IMMUNOGENETIQUE ABUNDANCE CYCLES; DQA AND DRB; IMMUNOCOMPETENCE HANDICAP; MHC CLASS II GENES; PARASITE-MEDIATED BALANCING SELECTION; SEXUAL SELECTION.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20101e8c77ca&uri=/notices/prodinra1/2010/12/
Registros recuperados: 2
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional