Additional file 1.

SWS1 opsin aa sequences and accession numbers. SWS1 opsin amino acid (aa) sequences from passerine plus falconiform and psittaciform species analysed in the present study and previously. The spectral tuning aa sites 86, 90 and 93 (see text) are marked in bold, as are the ENA accession number of sequences new to this study. Type of SWS1 opsin is estimated from the tuning sites as either VS (violet sensitive) or UVS (UV-sensitive). The taxonomy follows the IOC World Bird List [69]. Numbers after species names signify the number of individuals sequenced. Information on geographic location for the new samples is available at ENA webcite/< ACCESSION NUMBERS HE601811-HE601869 >.

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Ă–deen et al. BMC Evolutionary Biology 2011 11:313   doi:10.1186/1471-2148-11-313