Pseudogenisation of the Short-wavelength Sensitive 1 (SWS1) Opsin Gene in Two New Zealand Endemic Passerine Species: the Yellowhead (Mohoua ochrocephala) and Brown Creeper (M. novaeseelandiae)

Perception of ultraviolet (UV) light, mediated by the avian short-wavelength sensitive-1 (SWS1) opsin, is important for birds in a range of functional contexts, including foraging, mate choice, and offspring recognition. The maximum absorption wavelength of avian SWS1 opsins can shift in and out of...

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