0000000000352069
AUTHOR
Pascal Salar
Epidémiologie moléculaire et diversité des phytoplasmes du groupe 16SrV présents dans les compartiments viticoles et sauvages en Europe
National audience
Comparison of prevalence, geographical distribution and biological properties of two flavescence dorée phytoplasma strains
National audience
Sequence typing of map, secY and degV genes confirm the genetic relatedness of three distinct groups of flavescence dorée phytoplasmas with phytoplasmas of the 16SrV group infecting grapevine and alder in Europe
International audience
Multilocus sequence typing confirms the close genetic inter-relatedness between three distinct flavescence doree phytoplasma strain clusters and group 16SrV phytoplasmas infecting grapevine and alder in Europe
ABSTRACT Vineyards of southern France and northern Italy are affected by the flavescence dorée (FD) phytoplasma, a quarantine pathogen transmitted by the leafhopper of Nearctic origin Scaphoideus titanus . To better trace propagation of FD strains and identify possible passage between the vineyard and wild plant compartments, molecular typing of phytoplasma strains was applied. The sequences of the two genetic loci map and uvrB - degV , along with the sequence of the secY gene, were determined among a collection of FD and FD-related phytoplasmas infecting grapevine, alder, elm, blackberry, and Spanish broom in Europe. Sequence comparisons and phylogenetic analyses consistently indicated the…
Map gene as a new non ribosomal marker to study the molecular variability of grapevine yellows and related phytoplasmas from group 16SRV in Europe
International audience