Sequence of Echinochloa hoja blanca tenuivirus RNA-3.
Analysis of the sequence of the 2336 nucleotide RNA-3 of Echinochloa hoja blanca tenuivirus shows that it is closely related to RNA-3 of rice hoja blanca tenuivirus, the principal virus disease of rice in Latin America. This is especially true for the coding regions, where the viruses are almost 90% similar. However, the non-coding regions of RNA-3 of these viruses, principally the intergenic region separating the two ambisense open reading frames, are only about 50% similar, suggesting that these are distinct viruses. The results closely resemble those obtained for the analysis of RNA-4 of these viruses, both in the absolute and relative percentage similarities of the coding and non-coding regions. This implies a coordinated evolution of the different tenuivirus RNA segments. The features of the RNA and the comparisons with the sequences of RNA-3 of RHBV, rice stripe virus (RStV) and maize stripe virus (MStV) are discussed.
de Miranda
J R
JR
CIBCM, University of Costa Rica, San José, Costa Rica.
Muñoz
M
M
Madriz
J
J
Wu
R
R
Espinoza
A M
AM
D000595:Amino Acid Sequence; D001483:Base Sequence; D008969:Molecular Sequence Data; D012275:Oryza / Q000821:virology; D010942:Plant Viruses / Q000235:genetics*; D012328:RNA Viruses / Q000235:genetics*; D012367:RNA, Viral / Q000032:analysis*; D012689:Sequence Homology, Nucleic Acid
D012367:RNA, Viral