ArticleThe ISME journal2013
Viruses in the desert: a metagenomic survey of viral communities in four perennial ponds of the Mauritanian Sahara.
Article in The ISME journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.
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49 citing papers in PubMed, 107 citations in OpenAlex.
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- Saline lakes on the Qinghai-Tibet Plateau harbor unique viral assemblages mediating microbial environmental adaption.iScience · 2021Article
- Phages for Africa: The Potential Benefit and Challenges of Phage Therapy for the Livestock Sector in Sub-Saharan Africa.Antibiotics (Basel, Switzerland) · 2021Review
- Bacteriophages presence in nature and their role in the natural selection of bacterial populations.Acta bio-medica : Atenei Parmensis · 2020Review
- Identification of multiple potential viral diseases in a large urban center using wastewater surveillance.Water research · 2020Article
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- Urbanization and Waterborne Pathogen Emergence in Low-Income Countries: Where and How to Conduct Surveys?International journal of environmental research and public health · 2020Review
- Viruses as key reservoirs of antibiotic resistance genes in the environment.The ISME journal · 2019Article
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- Viral population analysis of the taiga tick, Ixodes persulcatus, by using Batch Learning Self-Organizing Maps and BLAST search.The Journal of veterinary medical science · 2019Article
- ENVirT: inference of ecological characteristics of viruses from metagenomic data.BMC bioinformatics · 2019Article
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- Implication of Viral Infections for Greenhouse Gas Dynamics in Freshwater Wetlands: Challenges and Perspectives.Frontiers in microbiology · 2019Article
- A Review on Viral Metagenomics in Extreme Environments.Frontiers in microbiology · 2019Review
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Here, we present the first metagenomic study of viral communities from four perennial ponds (gueltas) located in the central Sahara (Mauritania). Three of the four gueltas (Ilij, Molomhar and Hamdoun) are located at the source of three different wadis belonging to the same hydrologic basin, whereas the fourth (El Berbera) belongs to a different basin. Overall, sequences belonging to tailed bacteriophages were the most abundant in all four metagenomes although electron microscopy and sequencing confirmed the presence of other viral groups, such as large DNA viruses. We observed a decrease in the local viral biodiversity in El Berbera, a guelta with sustained human activities, compared with the pristine Ilij and Molomhar, and sequences related to viruses infecting crop pests were also detected as a probable consequence of the agricultural use of the soil. However, the structure of the El Berbera viral community shared the common global characteristics of the pristine gueltas, that is, it was dominated by Myoviridae and, more particularly, by virulent phages infecting photosynthetic cyanobacteria, such as Prochlorococcus and Synechococcus spp. In contrast, the Hamdoun viral community was characterized by a larger proportion of phages with the potential for a temperate lifestyle and by dominant species related to phages infecting heterotrophic bacteria commonly found in terrestrial environments. We hypothesized that the differences observed in the structural and functional composition of the Hamdoun viral community resulted from the critically low water level experienced by the guelta.
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