Plasma virome of cattle from forest region revealed diverse small circular ssDNA viral genomes
2018
Wang, Hao | Li, Shouxin | Maḥmūd, Āṣif | Yang, Shixing | Wang, Xiaochun | Shen, Quan | Shan, Tongling | Deng, Xutao | Li, Jingjiao | Hua, Xiuguo | Cui, Li | Delwart, Eric | Zhang, Wen
BACKGROUND: Free-range cattle are common in the Northeast China area, which have close contact with farmers and may carry virus threatening to cattle and farmers. METHODS: Using viral metagenomics we analyzed the virome in plasma samples collected from 80 cattle from the forested region of Northeast China. RESULTS: The virome of cattle plasma is composed of the viruses belonging to the families including Parvoviridae, Papillomaviridae, Picobirnaviridae, and divergent viral genomes showing sequence similarity to circular Rep-encoding single stranded (CRESS) DNA viruses. Five such CRESS-DNA genomes were full characterized, with Rep sequences related to circovirus and gemycircularvirus. Three bovine parvoviruses belonging to two different genera were also characterized. CONCLUSION: The virome in plasma samples of cattle from the forested region of Northeast China was revealed, which further characterized the diversity of viruses in cattle plasma.
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