title: Different responses of Drosophila subobscura isofemale lines to extremely low frequency magnetic field (50 Hz, 0.5 mT): fitness components and locomotor activity.
abstract: Extremely low frequency (ELF) magnetic fields as essential ecological factors may induce specific responses in genetically different lines. The object of this study was to investigate the impact of the ELF magnetic field on fitness components and locomotor activity of five Drosophila subobscura isofemale (IF) lines.
  
  
  
  Each D. subobscura IF line, arbitrarily named: B16/1, B24/4, B39/1, B57/2 and B69/5, was maintained in five full-sib inbreeding generations. Their genetic structures were defined based on the mitochondrial DNA variability. Egg-first instar larvae and 1-day-old flies were exposed to an ELF magnetic field (50 Hz, 0.5 mT, 48 h) and thereafter, fitness components and locomotor activity of males and females in an open field test were observed for each selected IF line, respectively.
  
  
  
  Exposure of egg-first instar larvae to an ELF magnetic field shortened developmental time, and did not affect the viability and sex ratio of D. subobscura IF lines. Exposure of 1-day-old males and females IF lines B16/1 and B24/4 to an ELF magnetic field significantly decreased their locomotor activity and this effect lasted longer in females than males.
  
  
  
  These results indicate various responses of D. subobscura IF lines to the applied ELF magnetic field depending on their genetic background.
authors.affiliation: a Laboratory of Materials Science, University of Belgrade, Vinča Institute of Nuclear Sciences , Belgrade , Serbia.
authors.forename: Danica
authors.initials: D
authors.lastname: Zmejkoski
authors.affiliation: b Department of Neurophysiology, University of Belgrade, Institute for Biological Research , Belgrade , Serbia.
authors.forename: Branka
authors.initials: B
authors.lastname: Petković
authors.affiliation: c Chair of Genetics and Evolution, Faculty of Biology , University of Belgrade , Belgrade , Serbia.
authors.forename: Sofija
authors.initials: S
authors.lastname: Pavković-Lučić
authors.affiliation: d Department of Insect Physiology and Biochemistry , University of Belgrade, Institute for Biological Research , Belgrade , Serbia.
authors.forename: Zlatko
authors.initials: Z
authors.lastname: Prolić
authors.affiliation: c Chair of Genetics and Evolution, Faculty of Biology , University of Belgrade , Belgrade , Serbia.|e Department of Chemical and Biological Sciences , Serbian Academy of Sciences and Arts , Belgrade , Serbia.|f Department of Genetics of Populations and Ecogenotoxicology , University of Belgrade, Institute for Biological Research , Belgrade , Serbia.
authors.forename: Marko
authors.initials: M
authors.lastname: Anđelković
authors.affiliation: f Department of Genetics of Populations and Ecogenotoxicology , University of Belgrade, Institute for Biological Research , Belgrade , Serbia.
authors.forename: Tatjana
authors.initials: T
authors.lastname: Savić
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology* / Q000528:radiation effects; D004330:Drosophila / Q000145:classification / Q000235:genetics* / Q000528:radiation effects*; D005260:Female; D008124:Locomotion / Q000502:physiology* / Q000528:radiation effects; D060526:Magnetic Fields; D008297:Male; D010809:Physical Fitness / Q000502:physiology*; D011829:Radiation Dosage; D013045:Species Specificity; D014916:Whole-Body Irradiation / Q000379:methods
keywords: 50 Hz magnetic field; Drosophila isofemale lines; developmental time; distance travelled; mobility; viability