Fig. 1

Mitochondrial genome of E. grandis. a. Genomic features are shown facing outward (positive strand) and inward (negative strand) of the E. grandis mitochondrial genome represented as a circular molecule. The colour key shows the functional class of the mitochondrial genes, and introns are shown in white. The GC content is represented in the innermost circle. The figure was generated in OGDraw [86]. b. Genome coverage of E. grandis WGS reads in log2 scale (Log coverage) across the mitochondrial genome. WGS reads were mapped with Bowtie 2 [77] and visualized in IGV [78]. The second track (Large repeats) shows mitochondrial repeat regions > 1000 bp in length, with pairs in matching colours, all repeat pairs are direct repeats, with the exception of the repeat pair shown in teal. The third track (Plastid transfers) shows plastid to mitochondrial DNA transfers longer than 100 bp, with e-value > 1 × 10^− 5 in green