Phytopathology (2005) 95, 227-232

Benoît Moury, Alain Palloix, Carole Caranta, Patrick Gognalons, Sylvie Souche, Kahsay Gebre Selassie and Georges Marchoux (2005)
Serological, molecular, and pathotype diversity of Pepper veinal mottle virus and Chili veinal mottle virus
Phytopathology 95 (3), 227-232
Abstract: Variability within the pepper-infecting potyviruses Pepper veinal mottle virus (PVMV) and Chili veinal mottle virus (ChiVMV) in Africa and Asia was investigated. Coat protein (CP) gene sequence diversity revealed three clades that corresponded to three geographic locations and there was no evidence of presence of the ChiVMV/Asian group in western or central Africa. These clades included closely related isolates that potentially belong to two viral species, which is consistent with current nomenclature. These clades could not be unambiguously identified with polyclonal antisera; however, reverse transcription-polymerase chain reactions allowed differentiation of the isolates into two species based on a large indel in the CP gene. PVMV and ChiVMV isolates were classified into three and two pathotypes, respectively, in relation to pepper genotypes carrying different resistance factors. Specificity of resistance only partially corresponded to molecular diversity of the isolates. Only one isolate of PVMV could infect pepper genotypes carrying the two recessive genes pvr6 and pvr22; however, these genotypes were not infected by PVMV in field trials in Senegal, despite a high prevalence of PVMV in the surrounding pepper plants.
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Database assignments for author(s): Benoît Moury, Alain Palloix, Carole Caranta

Research topic(s) for pests/diseases/weeds:
molecular biology - genes
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Chilli veinal mottle virus
	Pepper veinal mottle virus		Senegal