Phylogram of the sequences most related to Cupiennius hairy. All nodes had a puzzle support of >90%, except for the one that is specifically labeled. GenBank accession nos. for the sequences used: Cupiennius, AJ252154; Drosophila, S06956; Tribolium, S29712; Caenorhabditis, AF020555; Drosophila Deadpan, Q26263; mouse Hes1, NP032261; newt Hes1, BAA76633; Xenopus Hairy, AAA79185; Danio HER6, CAA65998; chickhairy1, O57337.