Journal of Plant Pathology (2006) 88, S52-S53
G. Parrella (2006)
Biological and genetic variability of Parietaria mottle virus isolates
Journal of Plant Pathology 88 (3, Special Issue), S52-S53
S.I.Pa.V XIII National Meeting - Foggia, 12-16 September 2006 - Poster
Abstract: Parietaria mottle virus (PMoV, genus Ilarvirus, family Bromoviridae) has emerged as pathogen of solanaceous crops in the last 10 years in some Mediterranean countries (Spain, France, Italy and Greece). PMoV was also recently detected in Mirabilis jalapa plants in Italy. Its origins and mechanisms for evolution and spread represent important traits for understanding plant virus emergence. Biological and molecular characterization of a collection of nine PMoV isolates differing in natural host and geographic origin was done. Clustering analysis of the coat protein nucleotide sequences discriminated two major groups of isolates. These two groups appear to correlate with their pathogenicity and year of collection rather than with the geographic origin of isolates. Within the larger cluster, comprising seven isolates, two major subsets of isolates, with some divergent ones, were defined showing no correlation with geographic origin or biological properties. The smaller cluster grouped only two PMoV isolates both from Italy and collected in the same region. These isolate were also the oldest in terms of year of collection. These data support the idea of a rapid molecular evolution of PMoV isolates related with the widening of their natural and experimental host ranges.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Giuseppe Parrella
Research topic(s) for pests/diseases/weeds:
molecular biology - genes
general biology - morphology - evolution
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Parietaria mottle virus | France | |||
| Parietaria mottle virus | Greece | |||
| Parietaria mottle virus | Italy | |||
| Parietaria mottle virus | Spain (continental) |
