The researchers speculate as to how, despite appearances, not having any mitochondrial DNA is an evolutionary advantage. But wait a minute. Maybe it isn’t. The life form may, in fact, be on the way out.
He thinks the Central Dogma of mitochondrial DNA needs to be rethought.
It was hardly heard of before and hardly widely predicted; now the Darwinian question is, why isn’t it more common? Why? Because there are two conflicting evolutionary forces at work. In the short-term, mixing mitochondria can be beneficial to individuals because the father’s mitochondria, say, can compensate for a harmful mutation in the mother’s mitochondria. […]