In early online, scientists have found that transposases play a role in one large eukaryotic genome. Studying the protozoan Oxytricha trifallax, which gets rid of 95 percent of its germline genome during development, they found that transposase genes play a key role in this process. "Transposase gene expression occurs during germline-soma differentiation and ... silencing of transposase by RNAi leads to abnormal DNA rearrangement in the offspring," they say in the abstract.