Cell Division Analysis in Fission Yeast (image) Kumamoto University Share Print E-Mail Caption Researchers from Japan used fission yeast to show that introns were involved in the promotion of heterochromatin structure formation. Credit Associate Professor Tokio Tani Usage Restrictions This image may only be used in conjunction with the accompanying release, or stories written about the work described in the release with reference to the original work. Share Print E-Mail 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.