|2020-05-18 ||The insertion of a mitochondrial selfish element into the nuclear genome and its consequences|
Julien Y. Dutheil, Karin Münch, Klaas Schotanus, Eva H. Stukenbrock and Regine Kahmann
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Some evolutionary insights into an accidental homing endonuclease passage from mitochondria to the nucleus
Not all genetic elements composing genomes are there for the benefit of their carrier. Many have no consequences on fitness, or too mild ones to be eliminated by selection, and thus stem from neutral processes. Many others are indeed the product of selection, but one acting at a different level, increasing the fitness of some elements of the genome only, at the expense of the “organism” as a whole. These can be called selfish genetic elements, and come into a wide variety of flavours , il...