title: Strawberry Accessions with ReducedDrosophila suzukiiEmergence From Fruits.
abstract: Drosophila suzukiiis threatening soft fruit production worldwide due to the females' ability to pierce through the intact skin of ripe fruits and lay eggs inside. Larval consumption and the associated microbial infection cause rapid fruit degradation, thus drastic yield and economic loss. Cultivars that limit the proliferation of flies may be ideal to counter this pest; however, they have not yet been developed or identified. To search for potential breeding material, we investigated the rate of adultD. suzukiiemergence from individual fruits (fly emergence) of 107 accessions ofFragariaspecies that had been exposed to egg-layingD. suzukiifemales. We found significant variation in fly emergence across strawberries, which correlated with accession and fruit diameter, and to a lesser extent with the strawberry species background. We identified accessions with significantly reduced fly emergence, not explained by their fruit diameter. These accessions constitute valuable breeding material for strawberry cultivars that limitD. suzukiispread.
authors.affiliation: Department of Genetics, Faculty of Biology, Ludwig-Maximilians-Universität München (LMU Munich) Planegg-Martinsried, Germany.
authors.forename: Xiaoyun
authors.initials: X
authors.lastname: Gong
authors.affiliation: Department of Evolutionary Ecology, Faculty of Biology, Ludwig-Maximilians-Universität München (LMU Munich) Planegg-Martinsried, Germany.
authors.forename: Lasse
authors.initials: L
authors.lastname: Bräcker
authors.affiliation: Institute of Botany, Department of Biology, Faculty of Science, Technische Universität Dresden Germany.
authors.forename: Nadine
authors.initials: N
authors.lastname: Bölke
authors.affiliation: Department of Evolutionary Ecology, Faculty of Biology, Ludwig-Maximilians-Universität München (LMU Munich) Planegg-Martinsried, Germany.
authors.forename: Camila
authors.initials: C
authors.lastname: Plata
authors.affiliation: Department of Genetics, Faculty of Biology, Ludwig-Maximilians-Universität München (LMU Munich) Planegg-Martinsried, Germany.
authors.forename: Sarah
authors.initials: S
authors.lastname: Zeitlmayr
authors.affiliation: Department of Quantitative Genetics, Faculty of Biology, Ludwig-Maximilians-Universität München (LMU Munich) Planegg-Martinsried, Germany.
authors.forename: Dirk
authors.initials: D
authors.lastname: Metzler
authors.affiliation: Hansabred GmbH & Co. KGDresden, Germany; Albrecht Daniel Thaer-Institute, Humboldt-Universität zu BerlinBerlin, Germany.
authors.forename: Klaus
authors.initials: K
authors.lastname: Olbricht
authors.affiliation: Department of Evolutionary Ecology, Faculty of Biology, Ludwig-Maximilians-Universität München (LMU Munich) Planegg-Martinsried, Germany.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Gompel
authors.affiliation: Department of Genetics, Faculty of Biology, Ludwig-Maximilians-Universität München (LMU Munich) Planegg-Martinsried, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Parniske
keywords: Drosophila suzukii; Fragaria; horticulture; plant disease resistance; plant–insect interactions; soft fruits