Fig. 4
From: Promising prospects of nanopore sequencing for algal hologenomics and structural variation discovery
Organellar genomes and structural variation. Overview of organellar genome content and structural variation (intronic ORF presence/absence) in Caulerpa ashmeadii. a Mitochondrial genome (197 Kbp, linearized). b Chloroplast genome (135 Kbp, linearized) with region of discovered structural variation and interspersed repeats shown with the bracket and cartoon magnifier. Colored blocks represent protein-coding genes and cassettes (in blue), free-standing ORFs (red), ribosomal DNA (rDNA) and associated ORFs (green and orange respectively). Gene blocks connected by lines represent exons of a same gene. Lines indicate sense transcription when placed above the genome, and antisense transcription when placed below. Note structural variation of the psbA intron and interspersed repeats ASH1.1/ASH1.2 recombining in repeat ASH1.3. Note also the large number of introns in the mitochondrial genome and lower overall gene content and compactness. (see Additional file 5: Figure S3 and Additional file 6: Figure S4 for a circular view of the organellar genomes further detailing gene content)