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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 and Harkins, Gordon W. and Kumari, Safaa G. and Thomas, John E. and Schwinghamer, Mark W. and Sharman, Murray and Collings, David A. and Briddon, Rob W. and Martin, Darren P. and Varsani, Arvind (2013) 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. Virology . ISSN 0042-6822

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Article Link(s): http://dx.doi.org/10.1016/j.virol.2013.06.024

Publisher URL: http://www.sciencedirect.com/science/article/pii/S0042682213003942

Abstract

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 isolates sampled in Australia, Eritrea, India, Iran, Pakistan, Syria, Turkey and Yemen. Comprehensive analysis of all available dicot-infecting mastrevirus sequences showed the diversity of these viruses in Australia to be greater than in the rest of their known range, consistent with earlier studies, and that, in contrast with the situation in monocot-infecting mastreviruses, detected inter-species recombination events outnumbered intra-species recombination events. Consistent with Australia having the greatest diversity of known dicot-infecting mastreviruses phylogeographic analyses indicating the most plausible scheme for the spread of these viruses to their present locations, suggest that most recent common ancestor of these viruses is likely nearer Australia than it is to the other regions investigated.

Item Type:Article
Business groups:Crop and Food Science
Keywords:Mastreviruses Geminiviruses Phylogeography Recombination
Subjects:Plant pests and diseases
Deposited On:01 Jul 2014 00:48
Last Modified:01 Jul 2014 00:48

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