TY - RPRT TI - A horizontally acquired expansin gene increases virulence of the emerging plant pathogen Erwinia tracheiphila AU - Rocha, J. AU - Shapiro, L. R. AU - Kolter, R. PY - 2019 DO - 10.1101/681643 UR - https://www.biorxiv.org/content/10.1101/681643v1 ID - 10.1101/681643 ER -