|ZFIN ID: ZDB-PUB-170323-6|
GnRH-mediated olfactory and visual inputs promote mating-like behaviors in male zebrafish
Li, L., Wojtowicz, J.L., Malin, J.H., Huang, T., Lee, E.B., Chen, Z.
|Source:||PLoS One 12: e0174143 (Journal)|
|Registered Authors:||Li, Lei|
|Keywords:||Zebrafish, Olfactory receptor neurons, Swimming, Glutamate, Methionine, Retinal ganglion cells, GnRH stimulation test, Olfactory bulb|
|PubMed:||28329004 Full text @ PLoS One|
Li, L., Wojtowicz, J.L., Malin, J.H., Huang, T., Lee, E.B., Chen, Z. (2017) GnRH-mediated olfactory and visual inputs promote mating-like behaviors in male zebrafish. PLoS One. 12:e0174143.
ABSTRACTThe engagement of sexual behaviors is regulated by a number of factors which include gene expression, hormone circulation, and multi-sensory information integration. In zebrafish, when a male and a female are placed in the same container, they show mating-like behaviors regardless of whether they are kept together or separated by a net. No mating-like behaviors are observed when same-sex animals are put together. Through the olfacto-visual centrifugal pathway, activation of the terminalis nerve in the olfactory bulb increases GnRH signaling in the brain and triggers mating-like behaviors between males. In zebrafish mutants or wild-type fish in which the olfacto-visual centrifugal pathway is impaired or chemically ablated, in response to odor stimulation the mating-like behaviors between males are no longer evident. Together, the data suggest that the combination of olfactory and visual signals alter male zebrafish's mating-like behaviors via GnRH signaling.