Abstract
The complete genomic sequences of a Chinese ASPV isolates KL1 and KL9 were determined from ten overlapping cDNA clones. The genomes of both isolates were 9265 nucleotides excluding the poly (A) tail and contained five open reading frames (ORFs). The identities between two complete genomes were 92.5% at nt level. Multiple alignment of the amino acid sequences showed that 110 aa variations between two genomic sequences and the variable domains mainly distributed in 5'-terminal of ORF1, ORF3, and ORF5, respectively. Two complete genomic sequences shared 71.4-77.3% identities with other ASPV isolates at nt level. Phylogenetic relationship analysis of the coat protein genes revealed that ASPV isolates had high variables and formed three groups. All ASPV isolates from apples were clustered to group I, whereas pear were clustered to groups II (except NC_003462) and both KL1 and KL9 were clustered to group III. Nucleotide sequences diversity analysis showed that the between-population d(NS)/d(S) ratio 0.092 was similar to these for within-group (0.092-0.095); there was no geographic differentiation between ASPV isolates.
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