119-million-year-old WTF Genes (IMAGE) Stowers Institute for Medical Research Caption The wtf meiotic driver gene family has unexpectedly persisted for over 100 million years Credit Stowers Institute for Medical Research, Illustration by Mark Miller Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.