Figure 1

Multi-gene phylogenetic reconstruction from 13 cDNA loci. Multi-gene phylogenetic reconstructions using 13 nuclear transcriptomic regions. Shown are the 50% majority rule consensus tree of maximum likelihood bootstraps (left) and the 50% majority rule percentage of support for clades given by Bayesian posterior probabilities from one million generation MCMC analysis (right). cDNA trees were rooted using as outgroup the most basal genera, Ascophyllum and Silvetia, determined as basal according to phylogenetic re-analysis of Fucaceae ITS data using its sister families as outgroup [23] (see details in Methods section for the analyses performed based on [23] and Additional file 2 for the corresponding phylogenetic reconstruction).