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Positive geotactic behaviors induced by geomagnetic field in Drosophila

Cited 17 time in Web of Science Cited 18 time in Scopus
Authors
Bae, Ji-Eun; Bang, Sunhoe; Min, Soohong; Lee, Sang-Hyup; Kwon, Soon-Hwan; Lee, Youngseok; Lee, Yong-Ho; Chung, Jongkyeong; Chae, Kwon-Seok
Issue Date
2016-05-18
Publisher
BioMed Central
Citation
Molecular Brain, 9(1):55
Keywords
CryptochromeDrosophila melanogasterGeomagnetic fieldGravityJohnston’s organNegative geotaxisPositive geotaxisVertical movement
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 Johnstons organ of the flys antennae.

Conclusions
These findings provide a novel concept with the neurogenetic basis on the regulation of vertical movement by GMF in the flying animals.
Language
English
URI
https://hdl.handle.net/10371/109826
DOI
https://doi.org/10.1186/s13041-016-0235-1
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College of Fine Arts (미술대학)Dept. of Crafts and Design (디자인학부)Journal Papers (저널논문_디자인학부)
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