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Fig. 2 | BMC Ecology and Evolution

Fig. 2

From: The evolution of opsin genes in five species of mirid bugs: duplication of long-wavelength opsins and loss of blue-sensitive opsins

Fig. 2

Opsin-based evolution of visual structure in insects. a Gains and losses of opsin genes in insect orders and ancestral state reconstruction. The colors represent the opsin types. The empty and color-filled rectangles represent losses and gains, respectively. The pie charts at the nodes show the probabilities of gain/loss in ancestors. b Phylogenetic relationships of the five mirid bugs and associated copy numbers of LW1 opsins. The colors indicate the opsin types, and the numbers below represent the copy numbers of the opsins

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