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Molecular Variability and Genetic Structure of IYMV in Burkina Faso
Laboratoire de Virologie et de Biotechnologie Végétale (LVBV), Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou, Burkina Faso
Laboratoire de Virologie et de Biotechnologie Végétale (LVBV), Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou, Burkina Faso
UMR IPME (UM, IRD, CIRAD), Institut de Recherche pour le Développement (IRD), Montpellier Cedex, France
UMR IPME (UM, IRD, CIRAD), Institut de Recherche pour le Développement (IRD), Montpellier Cedex, France
UMR IPME (UM, IRD, CIRAD), Institut de Recherche pour le Développement (IRD), Montpellier Cedex, France
Laboratoire de Virologie et de Biotechnologie Végétale (LVBV), Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou, Burkina Faso
UMR IPME (UM, IRD, CIRAD), Institut de Recherche pour le Développement (IRD), Montpellier Cedex, France
Université Ouaga I Professeur Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
Laboratoire Mixte Internationale (LMI) Patho-Bios, Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou, Burkina Faso
- 1 Laboratoire de Virologie et de Biotechnologie Végétale (LVBV), Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou, Burkina Faso
- 2 Laboratoire de Virologie et de Biotechnologie Végétale (LVBV), Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou, Burkina Faso
- 3 UMR IPME (UM, IRD, CIRAD), Institut de Recherche pour le Développement (IRD), Montpellier Cedex, France
- 4 UMR IPME (UM, IRD, CIRAD), Institut de Recherche pour le Développement (IRD), Montpellier Cedex, France
- 5 UMR IPME (UM, IRD, CIRAD), Institut de Recherche pour le Développement (IRD), Montpellier Cedex, France
- 6 Laboratoire de Virologie et de Biotechnologie Végétale (LVBV), Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou, Burkina Faso
- 7 UMR IPME (UM, IRD, CIRAD), Institut de Recherche pour le Développement (IRD), Montpellier Cedex, France
- 8 Université Ouaga I Professeur Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
- 9 Laboratoire Mixte Internationale (LMI) Patho-Bios, Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou, Burkina Faso
American Journal of Plant Sciences·Volume 09 (2018)·Pages 311–324·Published 18 January 2018·DOI10.4236/ajps.2018.92025
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Abstract
Imperata yellow mottle virus (IYMV, Sobemovirus) was first described in 2008 in the south-western region of Burkina Faso (West Africa). The genetic diversity of IYMV was not documented up to day. In this study, the variability of CP of IYMV was evaluated through the molecular characterization of 38 isolates collected in the western part of Burkina Faso. Comparison of sequences of these new isolates and one IYMV sequence available in GenBank revealed that the average nucleotide diversity was low. The ratio of non-synonymous over synonymous nucleotide substitutions per site was low, indicating a CP diversification under strong purifying selection. Despite of the low nucleotide diversity, phylogenetic analyses revealed segregation of IYMV isolates into six major clade s . There was no correlation of phylogenetic grouping of isolates based on geographical location. This is the first study of the genetic diversity of IYMV.
Keywords<i>Imperata yellow mottle virus</i>(IYMV)Coat Protein (CP)Genetic Var-iabilityPhylogenetic Analysis
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