1. Biosciences Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA
2. Department of Ecology and Evolutionary Biology University of Tennessee Knoxville TN 37996 USA
3. INRA Université de Lorraine UMR Interactions Arbres‐Microorganismes Laboratoire d'excellence ARBRE 54280 Champenoux France
4. Finnish Museum of Natural History University of Helsinki Helsinki 00170 Finland
5. Department of Biochemistry and Cellular and Molecular Biology University of Tennessee Knoxville TN 37996 USA