Phylodynamics of sunflower chlorotic mottle virus, an emerging pathosystem

Cabrera Mederos, Dariel
Torres, Carolina
Bejerman, Nicolas
Trucco, Verónica Milagros
Lenardon, Sergio Luis
Leiva Mora, Michel
Giolitti, Fabián José

Open link

Publication date

June 2020

DOI

10.1016/j.virol.2020.02.003

Publisher

Elsevier BV

Journal

Virology

Abstract

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 anal...