Figure 1

Phylogenetic tree of Paralogous group 1 in selected vertebrates. Phylogenetic tree reconstructions were conducted with homeodomain sequences as in [2]. The represented tree is obtained by bayesian inference (BI) using MrBayes [11] [12]. Rooting is arbitrary. The first numbers above the internal branches are posterior probabilities obtained by BI. The second numbers correspond to bootstrap values produced by the program PHYML of maximum-likelihood (ML) tree reconstruction [13]. Only statistical support values > 50 for at least one of the methods used (ML or BI) are shown. Marginal probabilities at each internal branches were taken as a measure of statistical support. All the alignements and the trees are available upon request. Abbreviations: LATME: Latimeria menadoensis, BRARE: Danio rerio, ASTBU: Astatotilapia burtoni, GASAC: Gasterosteus aculeatus, fox: Fundulus heteroclitus, ORYLA: Oryzia latipes.