Abstract
Faba bean necrotic yellows virus (FBNYV) (genus Nanovirus; family Nanoviridae) has a genome comprising eight individually encapsidated circular single-stranded DNA components. It has frequently been found infecting faba bean (Vicia faba L.) and chickpea (Cicer arietinum L.) in association with satellite molecules (alphasatellites). Genome sequences of FBNYV from Azerbaijan, Egypt, Iran, Morocco, Spain and Syria have been determined previously and we now report the first five genome sequences of FBNYV and associated alphasatellites from faba bean sampled in Tunisia. In addition, we have determined the genome sequences of two additional FBNYV isolates from chickpea plants sampled in Syria and Iran. All individual FBNYV genome component sequences that were determined here share > 84% nucleotide sequence identity with FBNYV sequences available in public databases, with the DNA-M component displaying the highest degree of diversity. As with other studied nanoviruses, recombination and genome component reassortment occurs frequently both between FBNYV genomes and between genomes of nanoviruses belonging to other species.
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Acknowledgements
This work was supported by funds from ICARDA awarded to SGK. AV and DPM are supported by the National Research Foundation of South Africa.
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KX431380-KX431435, MF510471-MF510474.
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705_2017_3651_MOESM1_ESM.docx
Supplementary Table 1 List of abutting forward and reverse primers used to isolate full FBNYV genome components and FBNY- associated satellites (DOCX 13 kb)
705_2017_3651_MOESM2_ESM.docx
Supplementary Table 2 List of FBNYV genomes, country of origin, and accession number for each component. Those in bold indicate isolates recovered in this study (DOCX 21 kb)
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Supplementary Table 3 List of FBNYV-associated alphasatellites, country of origin, and accession number for each isolate. Those in bold indicate isolates recovered in this study (DOCX 19 kb)
705_2017_3651_MOESM4_ESM.xls
Supplementary Data 1 Pairwise nucleotide sequence identity comparisons of FBNYV component sequences and nanovirus-associated alphasatellite sequences. Names highlighted in red indicate isolates recovered in this study (XLS 92 kb)
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Kraberger, S., Kumari, S.G., Najar, A. et al. Molecular characterization of faba bean necrotic yellows viruses in Tunisia. Arch Virol 163, 687–694 (2018). https://doi.org/10.1007/s00705-017-3651-3
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DOI: https://doi.org/10.1007/s00705-017-3651-3