Por favor, use este identificador para citar o enlazar este ítem: http://repositorio.iniap.gob.ec/handle/41000/5574
Tipo de Documento: Revista
Artículo
Autor : Nagoshi, Rodney N.
Cañarte Bermúdez, Ernesto
Navarrete Cedeño, José Bernardo
Pico, Jimmy T.
Bravo, Catalina
Arias, Myriam
Garcés, Sandra
Título : The genetic characterization of fall armyworm populations in Ecuador and its implications to migration and pest management in the northern regions of South America
Título de la serie: PLOS ONE 15(8)
Palabras clave : CHARACTERIZATION;GENETIC;FALL ARMYWORM;MANAGEMENT;PEST;SOUTH AMERICA
Fecha de publicación : ago-2020
Código: *EC-INIAP-BEEP-LA. Portoviejo (pdf76)
Páginas: 18 p.
Estación: E. E. Portoviejo
Resumen : The fall armyworm (Spodoptera frugiperda) is a moth pest native to the Western Hemisphere that has recently become a global problem, invading Africa, Asia, and Australia. The species has a broad host range, long-distance migration capability, and a propensity for the generation of pesticide resistance traits that make it a formidable invasive threat and a difficult pest to control. While fall armyworm migration has been extensively studied in North America, where annual migrations of thousands of kilometers are the norm, migration patterns in South America are less understood. As a first step to address this issue we have been genetically characterizing fall armyworm populations in Ecuador, a country in the northern portion of South America that has not been extensively surveyed for this pest. These studies confirm and extend past findings indicating similarities in the fall armyworm populations from Ecuador, Trinidad-Tobago, Peru, and Bolivia that suggest substantial migratory interactions. Specifically, we found that populations throughout Ecuador are genetically homogeneous, indicating that the Andes mountain range is not a long-term barrier to fall armyworm migration. Quantification of genetic variation in an intron sequence describe patterns of similarity between fall armyworm from different locations in South America with implications for how migration might be occurring. In addition, we unexpectedly found these observations only apply to one subset of fall armyworm (the C-strain), as the other group (R-strain) was not present in Ecuador. The results suggest differences in migration behavior between fall armyworm groups in South America that appear to be related to differences in host plant preferences.
Citación : Nagoshi, R.N., Cañarte Bermúdez, E., Navarrete Cedeño, J. B., Pico, J,, Bravo, C., Arias de Lopez, M., & Garcés, S.. (agosto, 2020). The genetic characterization of fall armyworm populations in Ecuador and its implications to migration and pest management in the northern regions of South America. PLOS ONE 15(8): e0236759. https://doi.org/10.1371/journal. pone.0236759
URI : http://repositorio.iniap.gob.ec/handle/41000/5574
Aparece en las colecciones: Investigaciones EEP

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