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Figure 2 | BMC Biology

Figure 2

From: Adaptive sequence evolution in a color gene involved in the formation of the characteristic egg-dummies of male haplochromine cichlid fishes

Figure 2

The haplochromines' egg-spots are made up of xanthophores. (a-c) Photograph (a) and fluorescence image (b, c) of the egg-spot of Pseudotropheus sp 'bicolor'. The yellow inner ring of the egg-spot of P. sp. 'bicolor' consists of xanthophores, the pteridine pigments of which fluoresce at high pH. Melanophores are also present in the border area around the transparent outer ring (a melanophore is marked by an arrowhead). (d, e) Egg-spot of Astatotilapia burtoni; bright field (d) and fluorescence image (e).

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