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Updated: Jan 28, 2026

Hyperactive piggyBac Transposase-mediated Germline Transformation in the Fall Armyworm, Spodoptera frugiperda
Published on: September 23, 2021
Identification of an Argentinean isolate of Spodoptera frugiperda granulovirus
Matías Luis Pidre1, Karina Belén Sabalette1, Víctor Romanowski1
1Instituto de Biotecnología y Biología Molecular (IBBM), CCT-La Plata CONICET, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina.
Abstract:
The fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is an important maize pest. Due to the environmental impact and emergence of resistance caused by chemical pesticides and transgenic events, the use of baculoviruses becomes a safe and useful alternative for its control in integrated pest management strategies. Here we report the identification of a novel isolate of a granulovirus of S. frugiperda native to the central region of Argentina, named SfGV ARG. We observed that larvae infected with SfGV ARG showed a yellowish coloration, swollen body and, in some cases, severe lesions in the last abdominal segments. We confirmed the identity of the isolate by sequencing fragments of the lef-8, lef-9 and granulin genes and by calculating evolutionary distances using the Kimura-2-Parameter model. SfGV ARG DNA restriction pattern allowed to estimate a genome of at least 135 kb.
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