title: The Biochemical Adaptations of Spotted Wing Drosophila (Diptera: Drosophilidae) to Fresh Fruits Reduced Fructose Concentrations and Glutathione-S Transferase Activities.
abstract: Spotted wing drosophila, Drosophila suzukii Matsumura, is an invasive and economically damaging pest in Europe and North America. The females have a serrated ovipositor that enables them to infest almost all ripening small fruits. To understand the physiological and metabolic basis of spotted wing drosophila food preferences for healthy ripening fruits, we investigated the biological and biochemical characteristics of spotted wing drosophila and compared them with those of Drosophila melanogaster Meigen. We found that the susceptibility to oxidative stressors was significantly increased in spotted wing drosophila compared with those of D. melanogaster. In addition, we found that spotted wing drosophila had significantly reduced glutathione-S transferase (GST) activity and gene numbers. Furthermore, fructose concentrations found in spotted wing drosophila were significantly lower than those of D. melanogaster. Our data strongly suggest that the altered food preferences of spotted wing drosophila may stem from evolutionary adaptations to fresh foods accompanied by alterations in carbohydrate metabolism and GST activities.
authors.forename: Phuong
authors.initials: P
authors.lastname: Nguyen
authors.forename: A-Young
authors.initials: AY
authors.lastname: Kim
authors.forename: Jin Kyo
authors.initials: JK
authors.lastname: Jung
authors.forename: Kelly M
authors.initials: KM
authors.lastname: Donahue
authors.forename: Chuleui
authors.initials: C
authors.lastname: Jung
authors.forename: Man-Yeon
authors.initials: MY
authors.lastname: Choi
authors.forename: Young Ho
authors.initials: YH
authors.lastname: Koh
mesh_terms: D000220:Adaptation, Biological; D000818:Animals; D004330:Drosophila / Q000201:enzymology* / Q000235:genetics; D029721:Drosophila Proteins / Q000235:genetics; D005632:Fructose / Q000378:metabolism*; D005982:Glutathione Transferase / Q000378:metabolism*; D058865:Introduced Species; D018384:Oxidative Stress; D016704:Synapsins / Q000235:genetics; D025521:Tumor Suppressor Proteins / Q000235:genetics
chemical_list: D029721:Drosophila Proteins; D016704:Synapsins; D025521:Tumor Suppressor Proteins; C070350:dlg1 protein, Drosophila; D005632:Fructose; D005982:Glutathione Transferase