A RAPD-PCR-based genetic diversity analysis of Helicoverpa armigera and H. zea populations in Brazil.
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Therefore, the aim of this study was to determine the genetic diversity of H. armigera and H. zea populations by RAPD-PCR analysis. The most important result was the clustering of one H. armigera population in a group predominantly formed by H. zea. It could indicate a possible occurrence of an interspecific cross between these species. This is a concern to Brazilian agriculture due to the possibility of selection of hybrids well adapted to the American environment, which would be inherited from H. zea.
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Praga de planta, Helicoverpa Zea, Lagarta, Variação genética, Marcador genético, Helicoverpa armigera, Random amplified polymorphic DNA technique, Genetic variation, Genetic markers