title: Identification of a new pathotype of Bean yellow mosaic virus (BYMV) infecting blue passion flower and some evolutionary characteristics of BYMV.
abstract: The modes of molecular evolution of the coat protein (CP) and 3' non-coding region (NCR) were investigated in Bean yellow mosaic virus (BYMV) isolates, including a new pathotype from blue passion fruit. In phylogenetic analysis, the new pathotype did not cluster with pathotypes or host groups described previously. Intraspecific recombinations involving the entire 3'-NCR and a variable portion of the 3'-terminal region of the CP gene were detected between a broad bean isolate and several isolates from monocots. Since the predicted secondary structure of the 3'-NCR correlated mostly with the botanical origin of isolates, a possible role of the 3'-NCR in BYMV host adaptation is proposed and discussed.
authors.affiliation: Istituto per la Protezione delle Piante, CNR, Portici (NA), Italy. parrella@ipp.cnr.it
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Parrella
authors.forename: Cecilia
authors.initials: C
authors.lastname: Lanave
mesh_terms: D020413:3' Untranslated Regions / Q000235:genetics; D019143:Evolution, Molecular; D029598:Passiflora / Q000821:virology*; D027805:Phaseolus / Q000821:virology; D010802:Phylogeny; D017800:Potyvirus / Q000145:classification / Q000235:genetics* / Q000472:pathogenicity; D013728:Terminator Regions, Genetic / Q000235:genetics; D056224:Viral Structures / Q000235:genetics
chemical_list: D020413:3' Untranslated Regions