Fig. 4: Unique sequence features of Stylonematophyceae mitogenomes.
From: Origin of minicircular mitochondrial genomes in red algae
a Box plot indicating GC content of mitochondrial CDSs. Box includes the 25th (Q1) to 75th (Q3) percentiles of the data with the median value in a thick line. Upper and lower whiskers indicate values within 1.5 times interquartile range (Q3 – Q1) above Q3 and below Q1, respectively. The Stylonematophyceae (indicated by colors) shows significantly elevated GC content compared to the other red algae (indicated by grey color). Among the Stylonematophyceae, C. ornatum has the lowest and R. pilicola has the highest GC content. Bangio., Bangiophyceae, n = 39 CDSs over 3 species; Bsub, Bangiopsis subsimplex, n = 13 CDSs; Cmob, Chroothece mobilis, n = 13 CDSs; Compsopo., Compsopogonophyceae, n = 60 CDSs over 5 species; Corn, Chroodactylon ornatum, n = 13 CDSs; Cyanidio., Cyanidiophyceae, n = 25 CDSs over 2 species; Florideo., Florideophyceae, n = 91 CDSs over 7 species; Porphyri., Porphyridiophyceae, n = 36 CDSs over 3 species; Rhodello., Rhodellophyceae, n = 36 CDSs over 3 species; Rmar, Rhodosorus marinus, n = 11 CDSs; Rpil, Rufusia pilicola, n = 11 CDSs; Sals, Stylonema alsidii, n = 11 CDSs; Ttra, Tsunamia transpacifica, n = 12 CDSs. b Topology constraint maximum likelihood phylogenetic tree based on 10 concatenated mitochondrial genes. Provided tree topology is shown in Fig. 5a. Only bootstrap value under 100 is shown. Note the highly diverged Stylonematophyceae sequences. Apli, Ahnfelta plicata; Bfus, Bangia fuscopurpurea; Ccae, Compsopogon caeruleus; Ccri, Chondrus crispus; Cmer, Cyanidioschyzon merolae; Coff, Corallina officinalis; Gele, Gelidium elegans; Ggra, Gracilaria gracilis; Hrub, Hildenbrandia rubra; Paer, Porphyridium aerugineum; Ppal, Palmaria palmata; Ppur, Porphyridium purpureum; Pumb, Porphyra umbilicalis; Pyez, Pyropia yezoensis. Source data are provided as a Source Data file.
