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Recombination, selection and clock-like evolution of Rice yellow mottle virus

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dc.creator Galzi, Agnès P.
dc.creator Mpunami, Anatolia
dc.creator Sangu, Emmanuel
dc.creator Rakotomalala, Mbolarinosy
dc.creator Traore, Oumar
dc.creator Sereme, Drissa
dc.creator Fatogoma, Sorho
dc.creator Sere, Y.
dc.creator Kanyeka, Zakaria L.
dc.creator Konaté, Gnissa
dc.creator Fargette, Denis
dc.date 2016-07-08T12:14:29Z
dc.date 2016-07-08T12:14:29Z
dc.date 2009-09
dc.date.accessioned 2018-03-27T08:55:38Z
dc.date.available 2018-03-27T08:55:38Z
dc.identifier Pinel-Galzi, A., Mpunami, A., Sangu, E., Rakotomalala, M., Traoré, O., Sérémé, D., Sorho, F., Séré, Y., Kanyeka, Z., Konaté, G. and Fargette, D., 2009. Recombination, selection and clock-like evolution of Rice yellow mottle virus. Virology, 394(1), pp.164-172.
dc.identifier http://hdl.handle.net/20.500.11810/2889
dc.identifier 10.1016/j.virol.2009.08.008 · Source: PubMed
dc.identifier.uri http://hdl.handle.net/20.500.11810/2889
dc.description The clock-like diversification of Rice yellow mottle virus (RYMV), a widespread RNA plant virus that infects rice in Africa, was tested following a three-step approach with (i) an exhaustive search of recombinants, (ii) a comprehensive assessment of the selective constraints over lineages, and (iii) a stepwise series of tests of the molecular clock hypothesis. The first evidence of recombination in RYMV was found in East Africa, in the region most favorable to co-infection. RYMV evolved under a pronounced purifying selection, but the selection pressure did vary among lineages. There was no phylogenetic evidence of transient deleterious mutations. ORF2b, which codes for the polymerase and is the most constrained ORF, tends to diversify clock-like. With the other ORFs and the full genome, the departure from the strict clock model was limited. This likely reflects the dominant conservative selection pressure and the clock-like fixation of synonymous mutations.
dc.language en
dc.publisher Elsevier
dc.subject Molecular clock
dc.subject Recombination
dc.subject Selection pressure
dc.subject Phylogeography
dc.title Recombination, selection and clock-like evolution of Rice yellow mottle virus
dc.type Journal Article, Peer Reviewed


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