Changes in selection intensity on the mitogenome of subterranean and fossorial rodents respective to aboveground species.

Abstract excerpt

Several rodent lineages independently acquired the ability to dig complex networks of tunnels where fossorial and subterranean species spend part or their whole life, respectively. Their underground lifestyles imposed harsh physiological demands, presumably triggering strong selective pressures on genes involved in energy metabolism like those coding for mitochondrial proteins. Moreover, underground lifestyles...

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