Nucleotide sequence analysis of a C1 gene fragment of psittacine beak and feather disease virus amplified by real-time polymerase chain reaction indicates a possible existence of genotypes.

Abstract excerpt

To investigate sequence diversity of psittacine beak and feather disease virus, samples collected from 31 psittacine species with or without clinical signs were tested for the presence of the viral genome. A real-time polymerase chain reaction was developed amplifying a 202 base pair fragment of the region encoding the capsid protein C1 and detecting 100 to 1000 genome equivalents. The nucleotide sequences of the...

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