Figure 4From: Long-wavelength sensitive visual pigments of the guppy (Poecilia reticulata): six opsins expressed in a single individualCladogram showing the relationships among guppy ( Poecilia reticulata ) and bluefin killifish ( Lucania goodei ) LWS opsins, with substitutions of likely functional importance mapped on the tree. These substitutions were the result of most parsimonious ancestral reconstructions inferred using MacClade v4.0 [62]. The branch leading to guppy LWS5, marked with an X, and the branch leading to guppy LWS6 and L. goodei LWSB, marked with a Y, were analyzed in PAML using branch-specific and branch-site models.Back to article page