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Figure 3 | BMC Evolutionary Biology

Figure 3

From: Nucleotide diversity in the mitochondrial and nuclear compartments of Chlamydomonas reinhardtii: investigating the origins of genome architecture

Figure 3

Schema of the introns in the L5- and L7-rRNA-coding modules. The vertical arrows in A show the intron insertion sites within the C. reinhardtii mtDNA. B and C depict the introns in the L5- and L7-rRNA-coding modules, respectively; rRNA-coding regions are orange; introns are light blue; intronic open reading frames are boxed in dark blue within their respective introns; L5-frag refers to a duplicated segment of the L5-rRNA-coding module (the first 35 nt of the module are duplicated); bracketed portions of the map represent regions that were shown to be spliced-out in mature transcripts. D depicts the intron insertion sites in the context of the large subunit (LSU) ribosomal RNA sequence of C. reinhardtii; arrows point to the region where the introns are inserted; numbers above the arrows denote the position of the residue that immediately precedes the insertion site: un-bracketed numbers correspond to the residue in the 23S rRNA gene of Escherichia coli [44] and bracketed numbers correspond to the residue in the LSU-rRNA secondary-structure model of Boer and Gray [21]. Note: the C. reinhardtii strains in which these introns occur are shown in Figure 1.

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