Fig. 5
From: The diversity of opsins in Lake Baikal amphipods (Amphipoda: Gammaridae)
The diversity of LWS opsins in Baikal amphipods. a Only the species with at least one opsin detected were analyzed. The two opsins of G. minus are shown for comparison and classification. b The relationship between the number of opsins and habitat depth. The relationship is statistically significant (adjusted \(\hbox {R}^{2}=0.17\); p = 0.003 in a linear model). For more information, see Additional file 8: Table S5. c Frequent MWS-like substitutions in LWS opsins of Baikal amphipods superimposed on the secondary structure of bovine rhodopsin visualized with Protter [78]. For more information, see Additional file 9: Table S6.