4Williams A K,Wang L, Sneed L W, et al. Comparative analyses of the nucleoeapsid genes of several strains of infectious bronchitis virus and other eoronaviruses[J]. Virus Res, 1992,25 (3): 213 - 222.
5蔡宝祥主编.家畜传染病学.[M]中国农业出版社,2002:46-50.
6蔡宝祥.家畜传染病学[M]北京:中国农业出版社,2005.
7Afonina I A,Reed M W,Lusby E. Minorgroove binder-conjugated DNA probes for quantitative DNA detectionby hybridization-triggered fluorescence[J].Biotechniques,2002,(04):940-946.
8Belousov Y S,Welch R A,Sanders S. Single nucleotide polymorphism genotyping by twocolor melting curve analysis using the MGB eclipse probe system inchallenging sequence environment[J].Humon Genomics,2004,(03):209-217.
9Cavanagh D. Coronavirus IBV:structural characterization of the spike protein[J].Journal of General Virology,1983.2577-2583.
10Heid C A,Stevens J,Livak K J. Real-time quantitative PCR methods[J].Genome Research,1996.986-994.
