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  • Title: [Newcastle disease virus heredity mutation and correlation of HN and F gene].
    Author: Qin ZM, Ma BC, He YF, Wang YL, Cui ZZ.
    Journal: Wei Sheng Wu Xue Bao; 2006 Apr; 46(2):227-32. PubMed ID: 16736582.
    Abstract:
    Prevailed Newcastle disease virus isolates were collected during 1999-2005 in China. These isolates were purified by CEF plaque assay and replicated in SPF embryos. The fusion protein (F) gene and hemagglutinin-neuraminidase (HN) gene of these isolated viruses were cloned and sequenced. Some of the F gene and HN gene sequences from GenBank were also used in this study. The homologies of nucleotide and amino acids were compared and correlations were analyzed by SPSS8.0 software among different length sequences of the F gene or HN gene. The nucleotide homologies and correlation among the F gene and HN gene were also analyzed. The results indicated there are good correlation among different length sequences of the F gene or HN gene and the F genome or HN genome (r > or = 0.973). There was also good correlations among different length amino acids of NDV F protein or HN protein (0.911< or = r < or = 0.968). But, there was only a less correlation between the whole F gene and HN gene (r = 0.312). The heredity mutation of HN genes had the character of geographical areas. The sequences of HN gene in Chinese isolates had an identity of more than 97%. But there was only 79.2% - 80.7% in HN nucleotide homology among the Chinese isolates and La Sota (vaccine).
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