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Nucleotide sequencing of S‐RNA segment and sequence analysis of the nucleocapsid protein gene of the newly isolated akabane virus PT‐17 strain
Author(s) -
Chang ChiaWei,
Liao YungKung,
Su Vincent,
Farh Lynn,
Shiuan David
Publication year - 1998
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1002/iub.7510450515
Subject(s) - biology , virology , phylogenetic tree , amino acid , genetics , gene , haeiii , homology (biology) , nucleic acid sequence , nucleoprotein , rna , sequence analysis , microbiology and biotechnology , restriction fragment length polymorphism , polymerase chain reaction
The nucleotide sequences of the S‐RNA of Akabane viruses JaGAr‐39, OBE‐1, Iriki and the newly isolated PT‐17 strains and the Aino virus were determined and compared. The results reveal that the S‐RNAs of the four Akabane strains share 96.9% homology in nucleotide sequences. Only one amino acid difference out of the 233 amino acids of the nucleocapsid protein (N) and three amino acid differences in the 91 amino acids of the nonstructural protein (NSs) were found among the Akabane viruses. Amino acid sequences of N and NSs proteins of the Aino virus have approximately 80% identity as compared with the Akabane viruses. The results also demonstrate that the four Akabane viruses and the Aino virus can be clearly differentiated by RFLP (restriction fragments length polymorphism) analysis using RT‐PCR generated nucleocapsid protein genes and digested with Hae III and Hin dIII. The phylogenetic tree based on the UPGMA (Unweighted Pair Group Method with Arithmetic Mean) analysis of the sequences of nucleocapsid protein genes and the S‐DNAs revealed that the newly isolated PT‐17 strain is most closely related to Iriki strain, than the JaGAr‐39 or OBE‐1 strains.