Supplementary_File_1 Alignment for the alpha subunit of the MCR complex Supplementary_File_2 FastTree newick file for the alpha subunit of the MCR complex Supplementary_File_3 IQ-TREE newick file for the alpha subunit of the MCR complex Supplementary_File_4 Alignment for the beta subunit of the MCR complex Supplementary_File_5 FastTree newick file for the beta subunit of the MCR complex Supplementary_File_6 IQ-TREE newick file for the beta subunit of the MCR complex Supplementary_File_7 Alignment for the gamma subunit of the MCR complex Supplementary_File_8 FastTree newick file for the gamma subunit of the MCR complex Supplementary_File_9 IQ-TREE newick file for the gamma subunit of the MCR complex Supplementary_File_10 Alignment for the FastTree genome tree Supplementary_File_11 FastTree newick file for the genome tree Supplementary_File_12 Alignment for the IQ-TREE genome tree Supplementary_File_13 IQ-TREE newick file for the genome tree Supplementary_File_14 Alignment for the RuBisCo gene tree Supplementary_File_15 Alignment of catalytic residues for the RuBisCo gene Supplementary_File_16 FastTree newick file for the RuBisCo gene tree Supplementary_File_17 IQ-TREE newick file for the RuBisCo gene tree Supplementary_File_18 Alignment of the 16S rRNA genes Supplementary_File_19 FastTree newick file for the 16S rRNA gene trees