Figure 1From: Gene order data from a model amphibian (Ambystoma): new perspectives on vertebrate genome structure and evolutionAn abridged phylogeny of the vertebrates showing the species used and divergence times. Letters mark ancestral nodes: A – the euteleost (bony vertebrate) ancestor [62], B – the tetrapod ancestor [63], C – the amniote ancestor [64, 65], D – the (eutherian) mammalian ancestor [66], E – the (murid) rodent ancestor [66], and the teleost fish (euteleostei) ancestor [67, 68].Back to article page