Author: Zhao, Xiaoya; Li, Zhili; Zeng, Xiduo; Zhang, Guanqun; Niu, Jianqiang; Sun, Baoli; Ma, Jingyun
Title: Sequence analysis of the spike gene of Porcine epidemic diarrhea virus isolated from South China during 2011–2015 Document date: 2017_6_22
ID: 2gp1mqfw_24
Snippet: The S genes of attenuated strains (CV777-attenuated, attenuated DR13, and 83P-5_100th-passaged) are 4149 nt in length, while the classical virulent strains, such as CV777, are 4152 nt long [16, 18] . Sequence analysis revealed length diversity among the 55 Chinese field strains in this study. The S gene of one field strain was shorter than those of the classical strains due to nucleotide deletions, while the S genes of 45 field strains were longe.....
Document: The S genes of attenuated strains (CV777-attenuated, attenuated DR13, and 83P-5_100th-passaged) are 4149 nt in length, while the classical virulent strains, such as CV777, are 4152 nt long [16, 18] . Sequence analysis revealed length diversity among the 55 Chinese field strains in this study. The S gene of one field strain was shorter than those of the classical strains due to nucleotide deletions, while the S genes of 45 field strains were longer due to nucleotide insertion. These variations are indicative of the unique characteristics of the S genes of the 55 field strains in the present study.
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