characterization and genetic diversity of potato yellow mosaic virus from the caribbean.the begomovirus potato yellow mosaic virus (pymv) is responsible of significant yield losses in tomato in guadeloupe. four field isolates from guadeloupe were analyzed in term of their host range using three inoculation methods (mechanical, grafting and insect vector), sequences analysis of pcr fragments and phylogenetic analysis of an infectious clone, pymv-[gp]. capsicum annuum, datura stramonium, nicotiana benthamiana, n. tabacum 'xanthi nc', petunia hybrida, and solanum tuberosum were found ...200414745605
distribution and diversity of geminiviruses in trinidad and tobago.abstract seven crop and eight weed species from 12 agricultural locations in trinidad and tobago were assayed for the presence of whitefly-transmitted geminiviruses (wtgs) by using dot blot hybridization and polymerase chain reaction (pcr) amplification of the n-terminal coat protein sequence with degenerate primers. the amplified fragments were cloned and analyzed by restriction enzyme digestion to determine fragment length polymorphism among the cloned fragments. representative clones were the ...199818944827
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