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From 2023 to 2024， 10-20-day-old ducks in a meat duck farm in Jiangsu Province， were suspected of being infected with duck plague virus （DPV）. This study aims to isolate and identify the virus and analyze genomic characteristics. Viral isolation and genome sequencing analysis were performed on the disease material in this study. Results were as follows： Duck plague virus was detected in visceral tissue， and a duck plague strain was successfully isolated， named QL2312. It has the same pathogenicity as the virulent strain. Sequence analysis of the isolate genome revealed that the UL2 gene of QL2312 strain was the same as that of the vaccine strain C-KCE strain， while the UL56/LORF5 gene was the same as the classical strain CHv and CV strains. This study successfully isolated a duck plague mutant strain， providing a basis for further research on related diseases.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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