Browsing South African National Bioinformatics Institute (SANBI) by Author "Varsani, Arvind"
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Avihepadnavirus diversity in parrots is comparable to that found amongst all other avian species
Piasecki, Tomasz; Harkins, Gordon William; Chrzastek, Klaudia; Julian, Laurel; Martin, Darren Patrick; Varsani, Arvind (Elsevier, 2013)Avihepadna viruses have previously been isolated from various species of duck ,goose, stork, heron and crane. Recently the first parrot avihepadna virus was isolated from a Ring-necked Parakeet in Poland. In this study, ... -
Diverse genomoviruses representing twenty-nine species identified associated with plants
Fontenele, Rafaela Salgado; Varsani, Arvind; Lefeuvre, Pierre F. (Springer Nature, 2020)Genomoviruses (family Genomoviridae) are circular single-stranded DNA viruses that have been mainly identifed through metagenomics studies in a wide variety of samples from various environments. Here, we describe 98 genomes ... -
Evidence of pervasive biologically functional secondary structures within the Genomes of Eukaryotic Single-Stranded DNA Viruses
Muhire, Brejnev Muhizi; Golden, Michael; Tanov, Emil Pavlov; Harkins, Gordon William; Murrell, Ben; Lefeuvre, Pierre; Lett, Jean-Michel; Gray, Alistair; Poon, Art Y. F.; Ngandu, Nobubelo Kwanele; Semegni, Yves; Monjane, Adérito Luis; Varsani, Arvind; Shepherd, Dionne Natalie; Martin, Darren Patrick (American Society for Microbiology, 2013)Single-stranded DNA (ssDNA) viruses have genomes that are potentially capable of forming complex secondary structures through Watson-Crick base pairing between their constituent nucleotides. A few of the structural elements ... -
Evidence that dicot-infecting mastreviruses are particularly prone to inter-species recombination and have likely been circulating in Australia for longer than in Africa and the Middle East
Kraberger, Simona; Harkins, Gordon William; Kumari, Safaa G.; Thomas, John E.; Schwinghamer, Mark W.; Sharman, Murray; Collings, David A.; Briddon, Rob W.; Martin, Darren Patrick; Varsani, Arvind (Elsevier, 2013)Viruses of the genus Mastrevirus (family Geminiviridae) are transmitted by leafhoppers and infect either mono- or dicotyledonous plants. Here we have determined the full length sequences of 49 dicot-infecting mastrevirus ... -
Extensive recombination detected among beak and feather disease virus isolates from breeding facilities in Poland
Julian, Laurel; Piasecki, Tomasz; Chrzastek, Klaudia; Walters, Matthew; Muhire, Brejnev; Harkins, Gordon William; Martin, Darren Patrick; Varsani, Arvind (Microbiology Society, 2013)Beak and feather disease virus (BFDV) causes the highly contagious, in some cases fatal, psittacine beak and feather disease in parrots. The European continent has no native parrots, yet in the past has been one of the ...