We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The genome of a prasinoviruses-related freshwater virus reveals unusual diversity of phycodnaviruses.
- Authors
Chen, Hao; Zhang, Weijia; Li, Xiefei; Pan, Yingjie; Yan, Shuling; Wang, Yongjie
- Abstract
Background: Phycodnaviruses are widespread algae-infecting large dsDNA viruses and presently contain six genera: Chlorovirus, Prasinovirus, Prymnesiovirus, Phaeovirus, Coccolithovirus and Raphidovirus. The members in Prasinovirus are identified as marine viruses due to their marine algal hosts, while prasinovirus freshwater relatives remain rarely reported. Results: Here we present the complete genomic sequence of a novel phycodnavirus, Dishui Lake Phycodnavirus 1 (DSLPV1), which was assembled from Dishui Lake metagenomic datasets. DSLPV1 harbors a linear genome of 181,035 bp in length (G + C content: 52.7%), with 227 predicted genes and 2 tRNA encoding regions. Both comparative genomic and phylogenetic analyses indicate that the freshwater algal virus DSLPV1 is closely related to the members in Prasinovirus, a group of marine algae infecting viruses. In addition, a complete eukaryotic histone H3 variant was identified in the genome of DSLPV1, which is firstly detected in phycodnaviruses and contributes to understand the interaction between algal virus and its eukaryotic hosts. Conclusion: It is in a freshwater ecosystem that a novel Prasinovirus-related viral complete genomic sequence is discovered, which sheds new light on the evolution and diversity of the algae infecting Phycodnaviridae.
- Subjects
GENOMES; DNA viruses; PHYCODNAVIRIDAE; MARINE algae; FRESHWATER ecology
- Publication
BMC Genomics, 2018, Vol 19, p1
- ISSN
1471-2164
- Publication type
Article
- DOI
10.1186/s12864-018-4432-4