Interesting topic. I know that there is a considerable amount of information on the Internet about Xenopus genetics, but haven't found very much about color genes. I found a couple of articles on creating a mutant strain of ACF. I've been studying ACFs for 30 years and have several textbooks and articles about these interesting frogs. I have kept Xenopus laevis, X. tropicalis and X. borealis, which is the most beautiful, natural color species, in my opinion.