The use of phylogenetic data to develop molecular tools for the detection and genotyping of Yam mosaic virus. Potential application in molecular epidemiology - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Journal of Virological Methods Année : 2000

The use of phylogenetic data to develop molecular tools for the detection and genotyping of Yam mosaic virus. Potential application in molecular epidemiology

Résumé

Molecular detection of Yam mosaic virus (YMV), the most important potyvirus for yam plants (Dioscorea spp.) has been limited by its high genetic diversity. According to recent phylogenetic data, suitable molecular tools were developed for detection and genotyping. A reliable and rapid molecular test is described using single-tube immunocapture (IC)-RT-PCR combining the use of a monoclonal antibody able to recognise all YMV serotypes and primers designed to take into account the whole variability of YMV. Phylogenetic data were then used to develop an uncoupled IC-RT-PCR procedure adapted to the genotyping of the three major phylogenetic groups and the two recombinants implicated in the YMV epidemics in the Caribbean and French Guiana. A third exploitation of phylogenetic data was carried out with the development of a typing test based on the analysis of short nucleotide sequences. The direct sequencing of a 450 nts fragment constituted a reliable complementary typing tool as the resulting information was quite similar to that obtained with sequences of the complete coat protein gene. The approach, consisting in a robust study of YMV variability followed by the use of phylogenetic data to develop reliable detection and genotyping tools, offers new perspectives for powerful molecular epidemiological studies.

Dates et versions

hal-02693249 , version 1 (01-06-2020)

Identifiants

Citer

Mustapha Bousalem, Sylvie Dallot, Sébastien Guyader. The use of phylogenetic data to develop molecular tools for the detection and genotyping of Yam mosaic virus. Potential application in molecular epidemiology. Journal of Virological Methods, 2000, 90 (1), pp.25-36. ⟨10.1016/S0166-0934(00)00198-1⟩. ⟨hal-02693249⟩

Collections

CIRAD INRA INRAE
11 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More