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Geospatial distribution of viromes in tropical freshwater ecosystems
- Source :
- Water Research
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- This study seeks to understand the general distribution of virome abundance and diversity in tropical freshwater ecosystems in Singapore and the geospatial distribution of the virome under different landuse patterns. Correlations between diversity, environmental parameters and land use patterns were analyzed and significant correlations were highlighted. Overall, the majority (65.5%) of the annotated virome belonged to bacteriophages. The percentage of Caudovirales was higher in reservoirs whereas the percentages of Dicistroviridae, Microviridae and Circoviridae were higher in tributaries. Reservoirs showed a higher Shannon-index virome diversity compared to upstream tributaries. Land use (urbanized, agriculture and parkland areas) influenced the characteristics of the virome distribution pattern. Dicistroviridae and Microviridae were enriched in urbanized tributaries while Mimiviridae, Phycodnaviridae, Siphoviridae and Podoviridae were enriched in parkland reservoirs. Several sequences closely related to the emerging zoonotic virus, cyclovirus, and the human-related virus (human picobirnavirus), were also detected. In addition, the relative abundance of PMMoV (pepper mild mottle virus) sequences was significantly correlated with RT-qPCR measurements (0.588<br />Graphical abstract Image 1<br />Highlights • Land use is the main driver of the viral community structure in surface waters. • 66 viral families were detected and 66% of the annotated virome was bacteriophages. • Reservoirs showed a higher Shannon diversity (10.4) than upstream tributaries (8.4). • Sequences closely related to human picobirnavirus and cyclovirus were detected. • The relative abundance of PMMoV sequences was correlated with RT-qPCR measurements.
- Subjects :
- 0301 basic medicine
Geospatial distribution
Environmental Engineering
food.ingredient
Fresh Water
Freshwater ecosystem
Article
03 medical and health sciences
food
Caudovirales
Abundance (ecology)
Mimiviridae
Human virome
Waste Management and Disposal
Relative species abundance
Water Science and Technology
Civil and Structural Engineering
Dicistroviridae
Singapore
Spatial Analysis
Diversity
biology
Virome
Ecology
Ecological Modeling
Freshwater ecosystems
Human-related viruses
biology.organism_classification
Pollution
030104 developmental biology
Cyclovirus
Viruses
Land use
Environmental Monitoring
Subjects
Details
- ISSN :
- 00431354
- Volume :
- 137
- Database :
- OpenAIRE
- Journal :
- Water Research
- Accession number :
- edsair.doi.dedup.....ed0a357a1cebcb5e1663b55dd69c243d