Photo for BTI Press Release (IMAGE) Boyce Thompson Institute Caption Boyce Thompson Institute researchers used Brachypodium distachyon (left) and Medicago truncatula (right) to discover the roles of two genes in root colonization by symbiotic fungi. Credit Mike Carroll/BTI Usage Restrictions Must use appropriate caption and credit. 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.