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Original Research ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Physiol. | doi: 10.3389/fphys.2019.00941

Locomotor behaviour and clock neurons organization in the agricultural pest Drosophila suzukii.

Celia N. Hansen1, Ozge Ozkaya1, Helen Roe1,  Charalambos P. Kyriacou1, Lara Giongo2 and  Ezio Rosato1, 3*
  • 1Department of Genetics and Genome Biology, University of Leicester, United Kingdom
  • 2Fondazione Edmund Mach, Italy
  • 3University of Leicester, United Kingdom

Drosophila suzukii (Matsumara) also called Spotted Wing Drosophila (SWD), is an invasive pest species originally from Asia that has now spread widely across Europe and North America. The majority of drosophilids including the best known Drosophila melanogaster only breed on decaying fruits. On the contrary, the presence of a strong serrated ovipositor and largely uncharacterised behavioural and metabolic adaptations allow D. suzukii to lay eggs inside healthy, ripening fruits that are still on the plant. Here we present an analysis of the rhythmic locomotor activity behaviour of D. suzukii under several laboratory settings. Moreover, we identify the canonical clock neurons in this species by reporting the expression pattern of the major clock proteins in the brain. Interestingly, a fundamentally similar organisation of the clock neurons network between D. melanogaster and D. suzukii does not correspond to similar characteristics in rhythmic locomotor activity behaviour.

Keywords: circadian, Drosophila, Melanogaster, suzukii, SWD, Behavior, clock

Received: 02 May 2019; Accepted: 09 Jul 2019.

Edited by:

Cristiano De Pitta, Department of Biology, University of Padova, Italy

Reviewed by:

Joanna C. Chiu, University of California, Davis, United States
Matthias Schlichting, Brandeis University, United States  

Copyright: © 2019 Hansen, Ozkaya, Roe, Kyriacou, Giongo and Rosato. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. Ezio Rosato, University of Leicester, Leicester, United Kingdom, er6@leicester.ac.uk