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Genetic structure of two Plusiinae species suggests recent expansion of Chrysodeixis includens in the American continent

2020; Wiley; Volume: 23; Issue: 3 Linguagem: Inglês

10.1111/afe.12427

1461-9563

Clérison Régis Perini, Verónica I. Sosa, Vicente E. Koda, Horacio Silva, Andrés A. Risso, Wanessa N. F. Vasconcelos, Carolina F. Gonçalves, Gustavo Andrade Ugalde, Dayanna do Nascimento Machado, Caroline Borges Bevilacqua, Daniel Mendes Pereira Ardisson-Araújo, Kevin Maebe, Guy Smagghe, Ivair Valmorbida, Jerson Vanderlei Carús Guedes,

Plant and animal studies

The Plusiinae subfamily has many polyphagous species, many of which occur in South America. Chrysodeixis includens and Rachiplusia nu are two representatives that mainly occurs in soybeans, cotton, common beans, sunflower and alfalfa. A population genetic study of C. includens and R. nu collected in the Southern Cone of America was performed using a partial COI gene sequencing data and compared with specimens from other American countries. Six haplotypes were identified in C. includens populations of Brazil, Argentina, Paraguay and Uruguay, organized within a star‐like haplotype network, with the most common haplotype identified as Chin_MC. R. nu populations are more diverse and stable in comparison to C. includens . Populations from Argentina and Uruguay had the highest haplotype diversity, sharing five haplotypes and putatively indicating haplotype exchange. Demographic change analysis suggested a recent population expansion of C. includens over the American continent. Some C. includens haplotypes were country‐specific, suggesting population expansion in the countries where specimens were collected.