Dataset from the evaluation of raspberry genetic resources towards oviposition of spotted wing drosophila (Drosophila suzukii)
The dataset contains the raw data of several experiments for the evaluation of raspberry genetic resources towards oviposition of spotted wing drosophila (Drosophila suzukii). The data was generated in frame of the project "Evaluation of raspberry and strawberry genetic resources for resistance to spotted wing drosophila (Drosophila suzukii) as base for the supply of resistance cultivars to German fruit production" from 2016 to 2019. The spotted-wing drosophila (SWD) is an invasive insect, which infest thin-skinned berries as strawberries, raspberries, blackberries, blueberries, gooseberries and currants. Females of Drosophila suzukii attack fresh, ripe fruit by using their saw-shaped ovipositor to lay eggs under the fruit’s skin. The infestation occurs previously before fruit harvest and larval development makes the fruits unusable for marketing. The control of D. suzukii is difficult, due to restrictions of pesticide application before harvest. Recent literature reported different raspberry cultivar preferences of D. suzukii. One possibility of sustainable control of D. suzukii could be the cultivation of low susceptible varieties in soft fruits. Development of low susceptible varieties for breeding requires the evaluation and identification of donors possible for breeding purposes. The evaluation of existing genetic resources (varieties and wild species) is the basis for future breeding programs or cultivation practise. The aim of the project is the detection of phenotypic differences in susceptibility against D. suzukii in genetic resources of raspberry. Low susceptible varieties can then be used for breeding or recommended to German growers. We tested the oviposition of D. suzukii to the raspberry cultivar Glen Ample in seven experiments to test reproducibility of the method (raw_data_rubus_larvae_SWD__test_establishment_2017.csv). Different ripening stages were evaluated for oviposition preference to D. suzukii (raw_data_rubus_larvae_SWD__ripening stage_201618.csv). A total of sixty raspberry cultivars were evaluated for oviposition preference (raw_data_rubus_larvae_SWD_20161718). Moreover, the sugar content and citric acid as well as the firmness were evaluated and used for a correlation analysis to mean number of larvae (raw_data_rubus_sweetness and titratable citirc acid_201718.csv; raw_data_rubus_firmness_201718.csv).
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