Phylodynamics of sunflower chlorotic mottle virus, an emerging pathosystem

Distribution and epidemiological patterns of sunflower chlorotic mottle virus (SCMoV) in sunflower (Helianthus annuus L.) growing areas in Argentina were studied from 2006 to 2017. The virus was detected exclusively in the Pampas region (Entre Ríos, Santa Fe, Córdoba, La Pampa and Buenos Aires provi...

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Published in:Virology (New York, N.Y.) Vol. 545; pp. 33 - 39
Main Authors: Cabrera Mederos, Dariel, Torres, Carolina, Bejerman, Nicolás, Trucco, Verónica, Lenardon, Sergio, Leiva Mora, Michel, Giolitti, Fabián
Format: Journal Article
Language:English
Published: United States Elsevier Inc 01.06.2020
Subjects:
ancestry
Argentina
Bayesian coalescent analysis
Bayesian theory
coat proteins
Emerging pathosystem
genes
Helianthus annuus
Pampas region
Phylodynamics
probability
Sunflower chlorotic mottle virus
viruses
Weeds
Argentina
Pampas region
Emerging pathosystem
Bayesian coalescent analysis
Phylodynamics
Sunflower chlorotic mottle virus
Weeds
ISSN:0042-6822, 1096-0341, 1096-0341
Online Access:Get full text
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Summary:Distribution and epidemiological patterns of sunflower chlorotic mottle virus (SCMoV) in sunflower (Helianthus annuus L.) growing areas in Argentina were studied from 2006 to 2017. The virus was detected exclusively in the Pampas region (Entre Ríos, Santa Fe, Córdoba, La Pampa and Buenos Aires provinces). Phylodynamic analyses performed using the coat protein gene of SCMoV isolates from sunflower and weeds dated the most recent common ancestor (MRCA) back to 1887 (HPD95% = 1572–1971), which coincides with the dates of sunflower introduction in Argentina. The MRCA was located in the south of Buenos Aires province and was associated with sunflower host (posterior probability for the ancestral host, ppah = 0.98). The Bayesian phylodynamic analyses revealed the dispersal patterns of SCMoV, suggesting a link between natural host diversity, crop displacement by human activities and virus spread.
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ISSN:0042-6822
1096-0341
1096-0341
DOI:10.1016/j.virol.2020.02.003