Exploring the diversity of Poaceae-infecting mastreviruses on Reunion Island using a viral metagenomics-based approach

Sohini Claverie, Alassane Ouattara, Murielle Hoareau, Denis Filloux, Arvind Varsani, Philippe Roumagnac, Darren P. Martin, Jean Michel Lett, Pierre Lefeuvre

Research output: Contribution to journalArticle

Abstract

Mostly found in Africa and its surrounding islands, African streak viruses (AfSV) represent the largest group of known mastreviruses. Of the thirteen AfSV species that are known to infect either cultivated or wild Poaceae plant species, six have been identified on Reunion Island. To better characterize AfSV diversity on this island, we undertook a survey of a small agroecosystem using a new metagenomics-based approach involving rolling circle amplification with random PCR amplification tagging (RCA-RA-PCR), high-throughput sequencing (Illumina HiSeq) and the mastrevirus reads classification using phylogenetic placement. Mastreviruses that likely belong to three new species were discovered and full genome sequences of these were determined by Sanger sequencing. The geminivirus-focused metagenomics approach we applied in this study was useful in both the detection of known and novel mastreviruses. The results confirm that Reunion Island is indeed a hotspot of AfSV diversity and that many of the mastrevirus species have likely been introduced multiple times. Applying a similar approach in other natural and agricultural environments should yield sufficient detail on the composition and diversity of geminivirus communities to precipitate major advances in our understanding of the ecology and the evolutionary history of this important group of viruses.

Original languageEnglish (US)
Article number12716
JournalScientific reports
Volume9
Issue number1
DOIs
StatePublished - Dec 1 2019

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Reunion
Geminiviridae
Metagenomics
Poaceae
Islands
Viruses
Ecology
History
Genome
Polymerase Chain Reaction

ASJC Scopus subject areas

  • General

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Exploring the diversity of Poaceae-infecting mastreviruses on Reunion Island using a viral metagenomics-based approach. / Claverie, Sohini; Ouattara, Alassane; Hoareau, Murielle; Filloux, Denis; Varsani, Arvind; Roumagnac, Philippe; Martin, Darren P.; Lett, Jean Michel; Lefeuvre, Pierre.

In: Scientific reports, Vol. 9, No. 1, 12716, 01.12.2019.

Research output: Contribution to journalArticle

Claverie, S, Ouattara, A, Hoareau, M, Filloux, D, Varsani, A, Roumagnac, P, Martin, DP, Lett, JM & Lefeuvre, P 2019, 'Exploring the diversity of Poaceae-infecting mastreviruses on Reunion Island using a viral metagenomics-based approach', Scientific reports, vol. 9, no. 1, 12716. https://doi.org/10.1038/s41598-019-49134-9
Claverie, Sohini ; Ouattara, Alassane ; Hoareau, Murielle ; Filloux, Denis ; Varsani, Arvind ; Roumagnac, Philippe ; Martin, Darren P. ; Lett, Jean Michel ; Lefeuvre, Pierre. / Exploring the diversity of Poaceae-infecting mastreviruses on Reunion Island using a viral metagenomics-based approach. In: Scientific reports. 2019 ; Vol. 9, No. 1.
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