Publications by authors named "Maria Gabriela Murua"
The fall armyworm (FAW), Spodoptera frugiperda, is a significant pest of many crops in the world and it is native to the Americas, where the species has shown the ability to rapidly evolve resistance to insecticides and transgenic plants. Despite the importance of this species, there is a gap in the knowledge regarding the genetic structure of FAW in South America. Here, we examined the genetic diversity of FAW populations across a wide agricultural area of Brazil and Argentina using a Genotyping-by-Sequencing (GBS) approach.
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- The fall armyworm is a major agricultural pest affecting food security globally, recognized for its diverse diet and migratory behavior, with distinct strains associated with corn and rice.
- This study analyzed the genetic diversity of 55 fall armyworm samples from various countries, revealing a largely interconnected population in the USA with small differences tied to host strains, and found evidence of multiple introductions from the Eastern Hemisphere.
- This research represents a significant advancement in understanding the population genomics of the fall armyworm in the USA and supports the use of laboratory strains for studying genetic differences, while highlighting the complexities of host strain interactions.
The soybean stalk weevil, Sternechus subsignatus Boheman 1836 (Coleoptera: Curculionidae), is a very serious soybean pest in the Neotropical region. Both adults and larvae feed on soybean, causing significant yield losses. Adult survival was evaluated during three soybean growing seasons under controlled environmental conditions.
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