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Registros recuperados: 69 | |
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Desbois, D.; Fauquet, Claude; Fargette, Denis; Vidal, G.. |
Cet article présente un exemple d'utilisation des banques de données moléculaires, comme source d'information, et de l'analyse factorielle des correspondances, comme technique d'analyse, pour la recherche taxinomique, ceci dans un pays en développement. L'application de cette technique statistique multivariée à la classification des virus de plantes permet de dégager des critères taxinomiques cohérents basés sur la composition en acides aminés, dinucléotides et codons de la protéine capsidaire. Ces critères aboutissent à une typologie pertinente du groupe des géminivirus, issue d'un algorithme ascendant de classification hiérarchique. (Résumé d'auteur) |
Tipo: Text |
Palavras-chave: ANALYSE MULTIVARIABLE; ANALYSE DE CORRESPONDANCE; CLASSIFICATION HIERARCHIQUE; TAXONOMIE; PHYTOVIRUS; BANQUE DE DONNEES; GEMINIVIRUS. |
Ano: 1992 |
URL: http://www.documentation.ird.fr/hor/fdi:41386 |
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Fargette, Denis; Colon, L.T.; Bouveau, R.; Fauquet, Claude. |
Components of resistance of cassava (#Manihot esculenta$) to African cassava mosaic virus (ACMV) and their interrelationships were confirmed and quantified in a series of experiments at Adiopodoumé (Ivory Coast, West Africa). The response to virus infection and to #Bemisia tabaci$ infestation of a large collection of cassava, including local cultivars and others derived from inter-specific #M. glaziovii$ hybrids was assessed. A consistent correlation was found between virus titre, symptom intensity, disease incidence and non-systemicity (recovery) which suggests that they are different expressions of the same genetic resistance. By contrast, there was no correlation between whitefly infestation and incidence of ACMV, suggesting that resistance to virus and... |
Tipo: Text |
Palavras-chave: MALADIE DES PLANTES; PHYTOVIRUS; CULTIVAR; VARIETE RESISTANTE; RELATION HOTE PARASITE; RENDEMENT; INFECTION. |
Ano: 1996 |
URL: http://www.documentation.ird.fr/hor/fdi:010007386 |
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Registros recuperados: 69 | |
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