Rice yellow mottle virus, an RNA plant virus, evolves as rapidly as most RNA animal viruses

Journal of Virology
D FargetteG Konaté

Abstract

The rate of evolution of an RNA plant virus has never been estimated using temporally spaced sequence data, by contrast to the information available on an increasing range of animal viruses. Accordingly, the evolution rate of Rice yellow mottle virus (RYMV) was calculated from sequences of the coat protein gene of isolates collected from rice over a 40-year period in different parts of Africa. The evolution rate of RYMV was estimated by pairwise distance linear regression on five phylogeographically defined groups comprising a total of 135 isolates. It was further assessed from 253 isolates collected all over Africa by Bayesian coalescent methods under strict and relaxed molecular clock models and under constant size and skyline population genetic models. Consistent estimates of the evolution rate between 4 x 10(-4) and 8 x 10(-4) nucleotides (nt)/site/year were obtained whatever method and model were applied. The synonymous evolution rate was between 8 x 10(-4) and 11 x 10(-4) nt/site/year. The overall and synonymous evolution rates of RYMV were within the range of the rates of 50 RNA animal viruses, below the average but above the distribution median. Experimentally, in host change studies, substitutions accumulated at an eve...Continue Reading

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Citations

Mar 28, 2009·Biology Letters·Rafael SanjuánSantiago F Elena
May 5, 2010·Genetics·Nicolas Tromas, Santiago F Elena
Dec 9, 2010·Virus Research·Heather E SimmonsAndrew G Stephenson
Oct 25, 2016·Virus Evolution·Nídia Sequeira TrovãoPhilippe Lemey
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Dec 15, 2016·Frontiers in Plant Science·Agnès Pinel-GalziLaurence Albar
Aug 29, 2018·Virus Evolution·Simon DellicourPhilippe Lemey

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