Mitochondria—A billion years of cohabitation
Fig 1
To sequester or not to sequester.
As zygotes develop to adulthood (left to right), the germline (red) of different organisms can either arise late in development (top row) or be sequestered early on (bottom row). A recent study [1] suggests that the choice of strategy is driven by mitochondrial mutation rate. Image credit: journal.pbio.2000410.