Jason Holiday, Virginia Tech (IMAGE) Virginia Tech Caption According to Jason Holliday (pictured), poplars are especially well suited to this type of research, enabling scientists to grow genetic duplicates of the exact same tree. Credit Virginia Tech 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.