Characterization of typical pepper-isolates of PVY reveals multiple pathotypes within a single genetic strain.
Potato virus Y (PVY) isolates originally coming from infected pepper plants, were biologically and genetically characterized, especially in comparison with PVY potato-isolates. Pepper PVY isolates could be differentiated from potato isolates in their host range, aphid transmission efficiencies, Mab serology, and genetic status. The genetic distances estimated for PVY pepper-isolates, based on their restrictotypes with five restriction enzymes and on their coat protein gene sequences, indicated that they form a single genetic strain with different pathotypic properties. This situation is essentially different to that of PVY potato-isolates.
Romero
A
A
Dpto. Mejora Genética y Biotecnología, INIA, autovía A-6, Km. 7, 28040, Madrid, Spain.
Blanco-Urgoiti
B
B
Soto
M J
MJ
Fereres
A
A
Ponz
F
F
D001483:Base Sequence; D002212:Capsicum / Q000821:virology*; D002213:Capsid / Q000235:genetics*; D036022:Capsid Proteins; D008969:Molecular Sequence Data; D017800:Potyvirus / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification / Q000472:pathogenicity; D012367:RNA, Viral; D014026:Nicotiana
D036022:Capsid Proteins; D012367:RNA, Viral; C090960:coat protein, Potato virus Y