Soybean Pods (IMAGE) Penn State Caption This epigenetic reprogramming of soybean plants, the culmination of a decade-long study, was accomplished not by introducing any new genes but by changing how existing genes are expressed. Credit Lynn Betts/USDA National Resource Conservation Service Usage Restrictions None License Licensed 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.