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- Title
Positive geotactic behaviors induced by geomagnetic field in Drosophila.
- Authors
Ji-Eun Bae; Sunhoe Bang; Soohong Min; Sang-Hyup Lee; Soon-Hwan Kwon; Youngseok Lee; Yong-Ho Lee; Jongkyeong Chung; Kwon-Seok Chae
- Abstract
Background: Appropriate vertical movement is critical for the survival of flying animals. Although negative geotaxis (moving away from Earth) driven by gravity has been extensively studied, much less is understood concerning a static regulatory mechanism for inducing positive geotaxis (moving toward Earth). Results: Using Drosophila melanogaster as a model organism, we showed that geomagnetic field (GMF) induces positive geotaxis and antagonizes negative gravitaxis. Remarkably, GMF acts as a sensory cue for an appetite-driven associative learning behavior through the GMF-induced positive geotaxis. This GMF-induced positive geotaxis requires the three geotaxis genes, such as cry, pyx and pdf, and the corresponding neurons residing in Johnston's organ of the fly's antennae. Conclusions: These findings provide a novel concept with the neurogenetic basis on the regulation of vertical movement by GMF in the flying animals.
- Subjects
GEOMAGNETISM; DROSOPHILA melanogaster; NEUROGENETICS; INSECT behavior; GEOTAXIS; BEHAVIOR
- Publication
Molecular Brain, 2016, Vol 9, p1
- ISSN
1756-6606
- Publication type
Article
- DOI
10.1186/s13041-016-0235-1