Comparison of Colombian and Costa Rican strains of rice hoja blanca tenuivirus

The sequences of RNA-3 and RNA-4 of rice hoja blanca tenuivirus isolates from Colombia and from Costa Rica were determined and analyzed. These isolates were 98.9% and 98.6% identical in the coding and non-coding regions of RNA-3, and 96.9 and 91.5% identical in the coding and non-coding regions of R...

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Bibliographic Details
Published in:Virus genes 1997, Vol.15 (3), p.191-193
Main Authors: Miranda, J.R. De (Costa Rica Univ., San Jose (Costa Rica)), Ramirez, B.C, Munoz, M, Lozano, I, Wu, R, Haenni, A.L, Espinoza, A.M, Calvert, L.A
Format: Article
Language:English
Subjects:
ARN
COLOMBIA
COLOMBIE
COSTA RICA
Genetic Variation
NUCLEOTIDE SEQUENCE
Oryza - virology
ORYZA SATIVA
Plant Viruses - genetics
Plant Viruses - isolation & purification
RNA
RNA Viruses - genetics
RNA Viruses - isolation & purification
RNA, Viral
SECUENCIA NUCLEOTIDICA
SEQUENCE NUCLEOTIDIQUE
TENUIVIRUS
TENUIVIRUSES
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Summary:The sequences of RNA-3 and RNA-4 of rice hoja blanca tenuivirus isolates from Colombia and from Costa Rica were determined and analyzed. These isolates were 98.9% and 98.6% identical in the coding and non-coding regions of RNA-3, and 96.9 and 91.5% identical in the coding and non-coding regions of RNA-4, and are therefore strains of the same virus. There is about three times as much variation between isolates (based on consensus sequences) as there is within isolates (based on sequences of individual clones). There is also considerably more variation for RNA-4 (both between and within isolates) than there is for RNA-3, even though between tenivirus species RNA-3 has diverged more than RNA-4, implying that the evolution of the tenuivirus RNAs is not necessarily dependent on the amount of variation found for these RNAs.
ISSN:0920-8569
1572-994X
DOI:10.1023/A:1007974728671