文献类型： 外文期刊
第一作者： Chen, Cuiteng
作者： Chen, Cuiteng;Zhu, Chunhua;Chen, Zhen;Cai, Guozhang;Lin, Lin;Zhang, Shizhong;Jiang, Bin;Miao, Zhongwei;Fu, Guanghua;Huang, Yu;Wan, Chunhe
作者机构：
关键词： pigeon adenovirus 2; fiber 2; TaqMan-qPCR assay; YPDS; epidemiological surveillance
期刊名称：POULTRY SCIENCE （ 影响因子：3.8； 五年影响因子：4.1 ）
ISSN： 0032-5791
年卷期： 2024 年 103 卷 7 期
页码：
收录情况： SCI
摘要： Pigeons infected with aviadenoviruses have been found worldwide. Recently, pigeon adenovirus 2 (PiAdV-2) has been widely distributed in racing pigeons in Germany. However, the epidemiology of this virus remains unclear due to the lack of a specific detection platform for PiAdV-2. In this study, we first detected PiAdV-2 positivity in racing pigeons (designated FJ21125 and FJ21128, which share 100% nucleotide identity with each other based on the fiber 2 gene) in Fujian, Southeast China. These genes shared 99.8% nucleotide identity with PiAdV-2 (GenBank No. NC_031501) but only 54.1% nucleotide identity with PiAdV-1 (GenBank No. NC024474). Then, the TaqMan-qPCR assay for the detection of PiAdV-2 was established based on fiber 2 gene characterization. The established assay had a correlation coefficient of 1.00, with an amplification efficiency of 99.0%. The minimum detection limit was 34.6 copies/ mL. Only PiAdV-2 exhibited a positive fluorescent signal, and no signal was detected for other pathogens (including PiCV, FAdV-4, FAdV-8a, EDSV, PPMV-1, RVA and PiHV). The assay has good reproducibility, with a coefficient of variation less than 2.42% both intragroup and intergroup. The distributions of PiAdV-2 in fecal samples from YPDS (35 samples) and healthy (43 samples) racing pigeons from different geographical areas were investigated and were 37.14% (YPDS) and 20.93% (healthy), respectively. In summary, we developed a TaqMan-qPCR platform for the detection of PiAdV-2 infection with high sensitivity, specificity, and reproducibility. We confirmed the presence of PiAdV-2 in China, and our data suggested that there is no indication of a correlation between YPDS and PiAdV-2. This study provides more information on the pathogenesis mechanism and epidemiological surveillance of PiAdV-2.
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