Magnetoreception Regulates Male Courtship Activity in Drosophila.

The possible neurological and biophysical effects of magnetic fields on animals is an area of active study. Here, we report that courtship activity of male Drosophila increases in a magnetic field and that this effect is regulated by the blue light-dependent photoreceptor cryptochrome (CRY). Naïve m...

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Main Authors: Chia-Lin Wu, Tsai-Feng Fu, Meng-Hsuan Chiang, Yu-Wei Chang, Jim-Long Her, Tony Wu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4873040?pdf=render
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author Chia-Lin Wu
Tsai-Feng Fu
Meng-Hsuan Chiang
Yu-Wei Chang
Jim-Long Her
Tony Wu
author_facet Chia-Lin Wu
Tsai-Feng Fu
Meng-Hsuan Chiang
Yu-Wei Chang
Jim-Long Her
Tony Wu
author_sort Chia-Lin Wu
collection DOAJ
description The possible neurological and biophysical effects of magnetic fields on animals is an area of active study. Here, we report that courtship activity of male Drosophila increases in a magnetic field and that this effect is regulated by the blue light-dependent photoreceptor cryptochrome (CRY). Naïve male flies exhibited significantly increased courtship activities when they were exposed to a ≥ 20-Gauss static magnetic field, compared with their behavior in the natural environment (0 Gauss). CRY-deficient flies, cryb and crym, did not show an increased courtship index in a magnetic field. RNAi-mediated knockdown of cry in cry-GAL4-positive neurons disrupted the increased male courtship activity in a magnetic field. Genetically expressing cry under the control of cry-GAL4 in the CRY-deficient flies restored the increase in male courtship index that occurred in a magnetic field. Interestingly, artificially activating cry-GAL4-expressing neurons, which include large ventral lateral neurons and small ventral lateral neurons, via expression of thermosensitive cation channel dTrpA1, also increased the male courtship index. This enhancement was abolished by the addition of the cry-GAL80 transgene. Our results highlight the phenomenon of increased male courtship activity caused by a magnetic field through CRY-dependent magnetic sensation in CRY expression neurons in Drosophila.
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spelling doaj.art-9738c055e59242f19d73df11ed989a692022-12-21T22:18:18ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01115e015594210.1371/journal.pone.0155942Magnetoreception Regulates Male Courtship Activity in Drosophila.Chia-Lin WuTsai-Feng FuMeng-Hsuan ChiangYu-Wei ChangJim-Long HerTony WuThe possible neurological and biophysical effects of magnetic fields on animals is an area of active study. Here, we report that courtship activity of male Drosophila increases in a magnetic field and that this effect is regulated by the blue light-dependent photoreceptor cryptochrome (CRY). Naïve male flies exhibited significantly increased courtship activities when they were exposed to a ≥ 20-Gauss static magnetic field, compared with their behavior in the natural environment (0 Gauss). CRY-deficient flies, cryb and crym, did not show an increased courtship index in a magnetic field. RNAi-mediated knockdown of cry in cry-GAL4-positive neurons disrupted the increased male courtship activity in a magnetic field. Genetically expressing cry under the control of cry-GAL4 in the CRY-deficient flies restored the increase in male courtship index that occurred in a magnetic field. Interestingly, artificially activating cry-GAL4-expressing neurons, which include large ventral lateral neurons and small ventral lateral neurons, via expression of thermosensitive cation channel dTrpA1, also increased the male courtship index. This enhancement was abolished by the addition of the cry-GAL80 transgene. Our results highlight the phenomenon of increased male courtship activity caused by a magnetic field through CRY-dependent magnetic sensation in CRY expression neurons in Drosophila.http://europepmc.org/articles/PMC4873040?pdf=render
spellingShingle Chia-Lin Wu
Tsai-Feng Fu
Meng-Hsuan Chiang
Yu-Wei Chang
Jim-Long Her
Tony Wu
Magnetoreception Regulates Male Courtship Activity in Drosophila.
PLoS ONE
title Magnetoreception Regulates Male Courtship Activity in Drosophila.
title_full Magnetoreception Regulates Male Courtship Activity in Drosophila.
title_fullStr Magnetoreception Regulates Male Courtship Activity in Drosophila.
title_full_unstemmed Magnetoreception Regulates Male Courtship Activity in Drosophila.
title_short Magnetoreception Regulates Male Courtship Activity in Drosophila.
title_sort magnetoreception regulates male courtship activity in drosophila
url http://europepmc.org/articles/PMC4873040?pdf=render
work_keys_str_mv AT chialinwu magnetoreceptionregulatesmalecourtshipactivityindrosophila
AT tsaifengfu magnetoreceptionregulatesmalecourtshipactivityindrosophila
AT menghsuanchiang magnetoreceptionregulatesmalecourtshipactivityindrosophila
AT yuweichang magnetoreceptionregulatesmalecourtshipactivityindrosophila
AT jimlongher magnetoreceptionregulatesmalecourtshipactivityindrosophila
AT tonywu magnetoreceptionregulatesmalecourtshipactivityindrosophila