Skip to main content
Fig. 5 | BMC Evolutionary Biology

Fig. 5

From: Visual adaptation in Lake Victoria cichlid fishes: depth-related variation of color and scotopic opsins in species from sand/mud bottoms

Fig. 5

The evolution of LWS alleles. a The regions used for HKA tests and construction of a LWS allele tree are shown by black and orange lines under the genome structure of LWS and flanking regions, respectively. b Neighbor-joining tree constructed using sequences 5 kbp upstream of LWS, LWS gene excluding exons, and 3.5 kbp downstream of LWS. Bootstrap values are shown for the neighbor-joining tree (left), maximum-parsimony tree (center), and maximum-likelihood tree (right) when the values were 95 or more in any tree. The alleles of LWS are shown at the ends of the tree branches. c An amino acid alignment of LWS from riverine species. Residue positions are numbered according to the sequences of LWS. The dots and letters indicate identical and different residues, respectively, compared with the top line. The amino acid positions with differences that are found among the alleles from Lake Victoria species are highlighted in black. The LWS sequences were determined from four riverine species: H. sp. ‘katonga’ (n = 2), H. sp. ‘katavi’ (n = 1), H. sp. ‘kitilda-rukwa’ (n = 2), and H. sp. ‘muzu-rukwa’ (n = 3). An alignment of LWS sequences from riverine individuals and sampling localities are shown in Additional file 5: Fig. S4

Back to article page