Fig. 2: Subtelomeric gene duplications (STGDs) in Cyanidiales.
From: Genome-wide signatures of adaptation to extreme environments in red algae
A The STGD orthogroup Venn diagram of four cyanidiophycean species. The number of orthogroups was indicated, along with number of genes in the STGD orthogroup denoted in brackets. B Copy numbers of Cyanidiales subtelomeric duplicated gene family in all red algal species. All duplicated genes were counted including non-STGD genes. The number next to taxa refers to the number of species or strains. Meso.: mesophilic red algae. C Characterization of STGDs and featured STGDs in the chromosomes of Cyanidium caldarium 063 E5; arsM (arsenic methyltransferase), merA (mercuric reductase), and Kelch & Trefoil (K+T) domain containing protein-coding genes. D Protein alignment and phylogenetic relationship of K+T domain containing genes in Cyanidium. The alignment included annotations for identified domains (e.g., kelch, trefoil) and specialized peptides (e.g., signal peptide). E Protein similarities and identities in Cyanidium K+T domain containing proteins were visualized using a bar plot. Excluding the comparison with a non-subtelomeric gene (‘CDCA10G3079’), all the genes are highly conserved with 80% of the above protein identities. Box and whisker plots, which highlight the 25th to 75th percentiles of the data and draw a thick line through the mean value, were used to represent the data ranges (n = 55).
