Fig. 5
From: Evolution of transcriptional regulation of histidine metabolism in Gram-positive bacteria
Distribution of various regulatory mechanisms for histidine metabolism genes among analyzed Firmicutes species. The maximum likelihood phylogenetic tree of Firmicutes species was constructed by MEGA X based on concatenated sequences of ribosomal proteins from the analyzed genomes. Colored bars show the occurrence of specific regulatory interactions in each species according to legend and Additional file 2. The size of circles in internal nodes represents bootstrap values in percentages (out of 100). Detailed tree with full genome names is presented in the rectangular form in Additional file 7