Evolution of non-coding nucleotide sequences in Newcastle disease virus genomes

Abstract:

Abstract:［Objective］Although much is done in the coding genes of Newcastle disease virus (NDV)，limited papers can be found with non-coding sequences．In this paper，the evolution tendency of non-coding sequences was studied．［Methods］NDV strain LC12 isolated from duck with egg drop syndrome in 2012，and others 35 strains genome cDNA of different NDV genotype were sought and obtained from GenBank． Analytical approaches including nucleotide homology，nucleotide alignment and phylogenetic tree were associated with the leading sequences，trailer sequences，intergenic sequences (IGS)，and coding gene between 5 ’and 3’UTＲ nucleotide，respectively．［Results］The location and the length of the non-coding sequences highly conserve，and the variation trend of non-coding sequences is synchronous with the entire genomes and coding genes． ［Conclusion］The molecular variation of the coding gene was indistinguishable with the non-coding gene in view of the NDV genome.