Figure 1.

Phylogenetic relationships of 32 Caenorhabditis species and D. coronatus. (A) Phylogeny inferred using Bayesian inference with the CAT‐GTR+Γ substitution model. Species described here are highlighted in bold, with previous species numbers in parentheses. Bayesian posterior probabilities are 1.0 unless noted as branch annotations. Scale is in substitutions per site. (B) Alternative hypotheses and support from each analysis approach. ML, Maximum likelihood inference using GTR+Γ substitution model; BI, Bayesian inference using the CAT‐GTR+Γ substitution model; ST, Supertree approach, using gene trees as input (substitution model selected automatically for each alignment).