The complete Maximum-likelihood and Bayesian trees reconstructed based on different type I RNH amino acid sequences (see Additional file 8 for the alignment). Statistical support was evaluated using aBayes aLRT (unit fractions) and 100 bootstrap replicates (% after a slash), and MCMC runs (%) in Maximum-likelihood and Bayesian reconstructions, respectively, and the results are shown at the corresponding nodes of the tree. Bootstrap values are shown only for the main indicated clusters. The names of the RNH clades from plant and oomycete genomes are highlighted in green and blue, respectively. The names of oomycete non-LTR-RT and LTR-RT RNH sequences identified in the present study correspond to those in Additional file 1: Table S2. Names of RNHs of other LTR-RTs and non-LTR-RTs correspond to those in GyDB [39] and Repbase Update [21], respectively. NCBI accession numbers are indicated to the right of other RNH sequences. (PDF 863 kb
