A clearer understanding of the structure of pest populations in newly invaded areas is a key step towards their efective management. Here, we use Drosophila suzukii as a model to highlight how populations from separate geographical regions difer in their genetic and phenotypic traits, including those associated with their invasiveness. New X-linked data indicate the presence of at most three D. suzukii genetic clusters in Europe, while North American populations are characterised by a larger genetic diversity. We found a likely new colonisation event from America to Italy and demonstrate that reference genomes from Italian and Californian populations lay in highly distant clusters. Comparative genomics indicate that these two genomes bear the traces of distinct evolutionary forces and are genetically distant, having diversifed long ago in their native Asian range. Phenotypic studies further indicate that European and North American populations have diferences in hatch rate, generation time, and parasitoid susceptibility. The observed genotypic and phenotypic diferences likely represent a small fraction of the features unique to each of the two populations. The results provide some new insights towards both fundamental and management studies on invasive pests, particularly when fndings are transferred across populations found in diferent geographical regions.

Distinct genotypes and phenotypes in European and American strains of Drosophila suzukii: implications for biology and management of an invasive organism / Rota-Stabelli, Omar; Ometto, Lino; Tait, Gabriella; Ghirotto, Silvia; Kaur, Rupinder; Drago, Francesco; González, Josefa; Walton, Vaughn M.; Anfora, Gianfranco; Rossi-Stacconi, Marco Valerio. - In: JOURNAL OF PEST SCIENCE. - ISSN 1612-4758. - 2019:(2019). [10.1007/s10340-019-01172-y]

Distinct genotypes and phenotypes in European and American strains of Drosophila suzukii: implications for biology and management of an invasive organism

Rota-Stabelli, Omar;Anfora, Gianfranco;
2019-01-01

Abstract

A clearer understanding of the structure of pest populations in newly invaded areas is a key step towards their efective management. Here, we use Drosophila suzukii as a model to highlight how populations from separate geographical regions difer in their genetic and phenotypic traits, including those associated with their invasiveness. New X-linked data indicate the presence of at most three D. suzukii genetic clusters in Europe, while North American populations are characterised by a larger genetic diversity. We found a likely new colonisation event from America to Italy and demonstrate that reference genomes from Italian and Californian populations lay in highly distant clusters. Comparative genomics indicate that these two genomes bear the traces of distinct evolutionary forces and are genetically distant, having diversifed long ago in their native Asian range. Phenotypic studies further indicate that European and North American populations have diferences in hatch rate, generation time, and parasitoid susceptibility. The observed genotypic and phenotypic diferences likely represent a small fraction of the features unique to each of the two populations. The results provide some new insights towards both fundamental and management studies on invasive pests, particularly when fndings are transferred across populations found in diferent geographical regions.
2019
Rota-Stabelli, Omar; Ometto, Lino; Tait, Gabriella; Ghirotto, Silvia; Kaur, Rupinder; Drago, Francesco; González, Josefa; Walton, Vaughn M.; Anfora, Gianfranco; Rossi-Stacconi, Marco Valerio
Distinct genotypes and phenotypes in European and American strains of Drosophila suzukii: implications for biology and management of an invasive organism / Rota-Stabelli, Omar; Ometto, Lino; Tait, Gabriella; Ghirotto, Silvia; Kaur, Rupinder; Drago, Francesco; González, Josefa; Walton, Vaughn M.; Anfora, Gianfranco; Rossi-Stacconi, Marco Valerio. - In: JOURNAL OF PEST SCIENCE. - ISSN 1612-4758. - 2019:(2019). [10.1007/s10340-019-01172-y]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/244841
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