Connecting the Navigational Clock to Sun Compass Input in Monarch Butterfly Brain

@article{auman2005ConnectingTN,
  title={Connecting the Navigational Clock to Sun Compass Input in Monarch Butterfly Brain},
  author={Ivo {\vS}auman and Adriana D. Briscoe and Haisun Zhu and Dingding Shi and Oren Froy and Julia Stalleicken and Quan Yuan and Amy L. Casselman and Steven M. Reppert},
  journal={Neuron},
  year={2005},
  volume={46},
  pages={457-467}
}
Migratory monarch butterflies (Danaus plexippus) use a time-compensated sun compass to navigate to their overwintering grounds in Mexico. Although polarized light is one of the celestial cues used for orientation, the spectral content (color) of that light has not been fully explored. We cloned the cDNAs of three visual pigment-encoding opsins (ultraviolet [UV], blue, and long wavelength) and found that all three are expressed uniformly in main retina. The photoreceptors of the polarization… Expand
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