The Biodesign Center for Fundamental and Applied Microbiomics, School of Life Sciences, Center for Evolution and Medicine, Arizona State University, Tempe, AZ, 85287, USA.
Department of Ecology & Evolutionary Biology, Institute of the Environment & Sustainability, University of California Los Angeles, Los Angeles, CA, 90095, USA.
Virology. 2021 Feb;554:89-96. doi: 10.1016/j.virol.2020.12.017. Epub 2020 Dec 30.
Over that last decade, coupling multiple strand displacement approaches with high throughput sequencing have resulted in the identification of genomes of diverse groups of small circular DNA viruses. Using a similar approach but with recovery of complete genomes by PCR, we identified a diverse group of single-stranded viruses in yellow-bellied marmot (Marmota flaviventer) fecal samples. From 13 fecal samples we identified viruses in the family Genomoviridae (n = 7) and Anelloviridae (n = 1), and several others that ware part of the larger Cressdnaviricota phylum but not within established families (n = 19). There were also circular DNA molecules identified (n = 4) that appear to encode one viral-like gene and have genomes of <1545 nts. This study gives a snapshot of viruses associated with marmots based on fecal sampling.
在过去的十年中,将多种链置换方法与高通量测序相结合,已经鉴定出了多种不同的小型环状 DNA 病毒的基因组。我们采用了类似的方法,但通过 PCR 回收完整的基因组,在黄腹旱獭(Marmota flaviventer)粪便样本中鉴定出了一组多样化的单链病毒。从 13 份粪便样本中,我们鉴定出了基因组病毒科(n=7)和圆环病毒科(n=1)的病毒,以及其他一些属于更大的 Cressdnaviricota 门但不属于已建立科的病毒(n=19)。还有一些被鉴定为环状 DNA 分子(n=4),它们似乎编码一个类似病毒的基因,基因组长度<1545nt。这项研究通过粪便采样,描绘了与旱獭相关的病毒图谱。