Search

Your search keyword '"Wan, Chun-he"' showing total 11 results
Start Over Author "Wan, Chun-he"
11 results on '"Wan, Chun-he"'

4. A novel group of avian Avastrovirus in domestic geese, China

Author

WAN, Chun-He, CHEN, Cui-Teng, CHENG, Long-Fei, LIU, Rong-Chang, SHI, Shao-Hua, FU, Guang-Hua, FU, Qiu-Ling, CHEN, Hong-Mei, and HUANG, Yu

Subjects
China, Reverse Transcriptase Polymerase Chain Reaction, viruses, virus diseases, avian Avastrovirus, Note, Avastrovirus, Molecular Typing, astrovirus, fluids and secretions, Virology, Astroviridae Infections, Geese, Animals, goose astrovirus, Phylogeny, Poultry Diseases
Abstract

Using an ORF1b-based astrovirus-specfic reverse transcription (RT)-PCR assay, a novel astrovirus-like was detected from domestic geese in China. Pairwise comparisons and phylogenetic analyzes suggested that a novel group of goose astrovirus, different with previously known astroviruses in the genus Avastrovirus, was found circulating in geese. This study has expanded our understanding about the role of domestic waterfowls as reservoirs for diverse astroviruses.

Published
2018

11. [Sequence comparison of the hemagglutinin gene of the duck-origin H9N2 subtype avian influenza viruses].

Author

Wan CH, Fu GH, Cheng LF, Shi SH, Chen HM, Peng CX, Lin F, Lin JS, and Huang Y

Subjects
Animals, China, Ducks, Influenza A Virus, H9N2 Subtype chemistry, Influenza A Virus, H9N2 Subtype classification, Influenza A Virus, H9N2 Subtype isolation & purification, Influenza A virus chemistry, Influenza A virus classification, Influenza A virus genetics, Molecular Sequence Data, Phylogeny, Sequence Alignment, Hemagglutinin Glycoproteins, Influenza Virus chemistry, Hemagglutinin Glycoproteins, Influenza Virus genetics, Influenza A Virus, H9N2 Subtype genetics, Influenza in Birds virology, Poultry Diseases virology
Abstract

To demonstrate the phylogenetic evolution, the molecular characteristics of the motif of HA protein cleavage site and the varieties at the receptor binding sites of the hemagglutinin gene of the duck-origin H9N2 subtype avian influenza viruses, sequence alignment and phylogenetic analysis were performed by MEGA 4.1 Neighbor-Joining method.. The results revealed that the duck-origin H9N2 AIV viruses originated from CK/BJ/1/94-like and North-Ame-like, all the duck-origin H9N2 AIV viruses from mainland China belonged to CK/BJ/1/94-like and formed multiple genotypes through complicated re-assortment, while other duck-origin H9N2 AIV, isolated from other countries in Aisa, American and European such as Korea, Japan, Alberta, Austria, Switzerland, Iran, belonged to the North-Ame-like phylogenetic lineage. The amino acids at positions 183, 190, and 226 of the receptor binding sites of North-Ame-like group isolates had highly conserved H, E and Q respectively. In contrast with duck-origin H9N2 AIV viruses isolates from mainland China, the amino acids had N at positions 183, A, T, or V at 190, L or Q at 226, which was the same as the chicken-origin H9N2 AIV from mainland China. Most newly isolated chicken-origin H9N2 AIV in Fujian Province in Southern China had L at position 226 emphasized the higher risk of cross-infection between the chicken-origin and duck-origin H9N2 AIV in China.

Published
2012

Catalog

Books, media, physical & digital resources
See catalog results