Figure 3.

Bayesian tree of Pristionchus species based on ribosomal protein genes. The phylogenetic relationships were reconstructed from concatenated ribosomal protein CDS by Bayesian inference using the MrBayes 3.2.1 software [31]. The evolutionary model was set to GTR+I+G. The analysis was run for 150,000 generations, burn-in time was for 37,500 generations, sampling frequency was 1 in 100 generations. Koerneria sp. was included as the closest related genus to Pristionchus. The tree was rooted at midpoint. Numbers at nodes indicate posterior probabilities. Hermaphroditic and gonochoristic (male/female) species are marked. The geographic origins of the species are indicated.

Mayer et al. BMC Evolutionary Biology 2007 7:104   doi:10.1186/1471-2148-7-104
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