TY - RPRT TI - Time calibrated tree of Dioscorea (Dioscoreaceae) indicated four origins of yams in the Neotropics since Eocene AU - Couto, R. S. AU - Martins, A. AU - Bolson, M. AU - Lopes, R. C. AU - Smidt, E. C. AU - Braga, J. M. A. PY - 2017 DO - 10.1101/224790 UR - https://www.biorxiv.org/content/10.1101/224790v1 ID - 10.1101/224790 ER -