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A new cryptic virus belonging to the family Partitiviridae was found in watermelon co-infected with Melon necrotic spot virus

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Abstract

A novel virus was detected in watermelon plants (Citrullus lanatus Thunb.) infected with Melon necrotic spot virus (MNSV) using SOLiD next-generation sequence analysis. In addition to the expected MSNV genome, two double-stranded RNA (dsRNA) segments of 1,312 and 1,118 bp were also identified and sequenced from the purified virus preparations. These two dsRNA segments encode two putative partitivirus-related proteins, an RNA-dependent RNA polymerase (RdRP) and a capsid protein, which were sequenced. Genomic-sequence analysis and analysis of phylogenetic relationships indicate that these two dsRNAs together make up the genome of a novel Partitivirus. This virus was found to be closely related to the Pepper cryptic virus 1 and Raphanus sativus cryptic virus. It is suggested that this novel virus putatively named Citrullus lanatus cryptic virus be considered as a new member of the family Partitiviridae.

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Acknowledgments

Contribution from the Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel, No. 521/13.

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Authors and Affiliations

  1. Department of Plant Pathology, Agricultural Research Organization (ARO)-The Volcani Center, 50250, Bet Dagan, Israel

    Noa Sela, Oded Lachman, Victoria Reingold & Aviv Dombrovsky

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  1. Noa Sela
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  2. Oded Lachman
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  3. Victoria Reingold
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  4. Aviv Dombrovsky
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Correspondence to Noa Sela.

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Sela, N., Lachman, O., Reingold, V. et al. A new cryptic virus belonging to the family Partitiviridae was found in watermelon co-infected with Melon necrotic spot virus . Virus Genes 47, 382–384 (2013). https://doi.org/10.1007/s11262-013-0937-8

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  • DOI: https://doi.org/10.1007/s11262-013-0937-8

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