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http://conacyt.repositorioinstitucional.mx/jspui/handle/1000/1653| First detection of bovine coronavirus in yak (Bos grunniens) and a bovine coronavirus genome with a recombinant he gene | |
| He, Q Guo, Z Zhang, B Yue, H Tang, C | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| The yak (Bosgrunniens) is a unique domestic bovine species that plays an indispensable role for herdsmen in the Qinghai-Tibet Plateau. Here, 336 diarrhoeic samples were collected from yaks on 29 farms in the Qinghai-Tibet Plateau from 2015 to 2017. Approximately 69.05 % (232/336) of the diarrhoeic samples were assessed as bovine coronavirus (BCoV)-positive by RT-PCR assay, and most of the detected strains showed a unique evolution based on 40 spike (S), nucleocapsid (N) and haemagglutinin-esterase (HE) gene fragments. Notably, the 12 complete S genes detected shared 1 identical amino acid mutation (E121V) in the S1 subunit compared with the other 150 complete S genes in the GenBank database. Furthermore, a BCoV strain (designated YAK/HY24/CH/2017) was isolated from one diarrhoeic sample (virus titre : 108.17TCID50 ml-1), and a phylogenetic analysis based on complete genome sequences revealed that strain YAK/HY24/CH/2017 has the closest genetic relationship with the BCoV prototype strain Mebus. Interestingly, 2 significant characteristics were observed in the genome of strain YAK/HY24/CH/2017 : (1) the strain had 26 unique amino acid variations in the S gene compared with the other 150 BCoV S genes in the GenBank database and (2) a recombination event was identified between the esterase and lectin domains of the HE gene. In conclusion, this study revealed the high prevalence of BCoV in yaks in the Qinghai-Tibet Plateau. To the best of our knowledge, this is the first description of the molecular prevalence of BCoV in yaks and of a BCoV genome with an HE gene recombination. | |
| The Journal of General Virology | |
| 2019 | |
| Preimpreso | |
| https://coronavirus.1science.com/item/4fd96a0da6512cacea941f47d888b10272c44ddc | |
| Inglés | |
| VIRUS RESPIRATORIOS | |
| Aparece en las colecciones: | Artículos científicos |
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