Fig. 2.—

Phylogenetic relationships among the stramenopiles based on concatenated nad genes. Stramenopile species are grouped according to their second highest rank in the taxonomic classification of Adl et al. (2012). The tree shown is that inferred using IQ-Tree analysis as described in the methods section. The Bayesian analysis tree was identical except for the branch order of Fucus and Pylaiella. Some of the branches have been collapsed to simplify the topology; the number alongside the genus indicates the number of taxa represented. Bootstrap support and posterior probabilities are adjacent to each node in the order Maximum Likelihood/IQ-Tree/Bayesian Analysis. Where boot strap support was 100% and Posterior Probabilities were 1.0, the node is indicated by a filled circle. Bootstrap support lower than 50% and posterior probability values of < 0.5 are indicated by asterisks. GenBank accession numbers of the sequences used are listed in parentheses.