Figure 1From: Microarray analysis of a salamander hopeful monster reveals transcriptional signatures of paedomorphic brain developmentGrowth of larval axolotls and tiger salamanders. Data points are snout vent length (SVL) measured for individuals at the time of brain tissue collection. Lines were estimated by fitting a general linear model (R2= 0.957) to SVL data from both species. All terms of the model were significant (p < 0.05; see methods). Axolotl larvae = black circles, tiger salamander larvae = gray triangles. The blue bar shows the time period where anatomical changes consistent with metamorphosis were observed in tiger salamander larvae (A.t.t.).Back to article page