Publication Date: 2017.
High Plains wheat mosaic virus (HPWMoV) has recently been assigned to genus Emaravirus and is the causal agent of High Plains disease. In this work the geographical distribution and first molecular detection of HPWMoV in Argentina are reported. The virus was detected in six provinces and nine hosts, including wheat, corn, oat and barley, as well as weeds, which play an important role in the epidemiology of this disease. Molecular and phylogenetic analyses of a portion of RNA3 nucleoprotein gene sequence showed that five HPWMoV isolates from different wheat growing regions of Argentina were identical, and suggest a single introduction of HPWMoV to this country, possibly through corn seeds. To the best of our knowledge, this is the first molecular detection of HPWMoV in South America. These results highlight the importance of certification of viruses-free cereal seeds and strict controls for material transfer between different countries to prevent the entry not only of new pathogens but also of new variants or strain at sites where the pest has already been detected.
Instituto de Patología Vegetal
Author affiliation: Alemandri, Vanina Maria. INTA. Instituto de Patología Vegetal; Argentina
Author affiliation: Mattio, Maria Fernanda. INTA. Instituto de Patología Vegetal; Argentina
Author affiliation: Rodriguez, Sandra Monica. INTA. Instituto de Patología Vegetal; Argentina
Author affiliation: Truol, Graciela Ana Maria. INTA. Instituto de Patología Vegetal; Argentina
Keywords: Distribución Geográfica; Emaravirus; Genética Molecular; Trigo; Triticum Aestivum; Virus de las Plantas; Geographical Distribution; Molecular Genetics; Wheat; Plant Viruses; Argentina; Virus del Mosaico del Trigo; Análisis Filogenético; Wheat Mosaic Virus; Phylogenetic Analysis; High Plains Virus.
Repository: INTA Digital (INTA). Instituto Nacional de Tecnología Agropecuaria