High mitochondrial mutation rates in are associated with nuclear-mediated changes in mitochondrial physiology.

Mitochondrial (mt) respiration depends on proteins encoded both by the mitochondrial and nuclear genomes. Variation in mt-DNA mutation rates exists across eukaryotes, although the functional consequences of elevated mt mutation rates in some lineages remain underexplored. In the angiosperm genus , closely related, ecologically similar species have either 'fast' or 'slow' mt-DNA mutation rates.