A common genomic framework for a diverse assembly of plasmids in the symbiotic nitrogen fixing bacteria

Lisa C Crossman, Santiago Castillo-Ramírez, Craig McAnnula, Luis Lozano, Georgios S Vernikos, José L Acosta, Zara F Ghazoui, Ismael Hernández-González, Georgina Meakin, Alan W Walker, Michael F Hynes, J Peter W Young, J Allan Downie, David Romero, Andrew W B Johnston, Guillermo Dávila, Julian Parkhill, Víctor González