The effect of migration rate upon evolution of phage infectivity ranges through time. Bars show mean (± 1 SEM) proportion of bacteria from all migration treatments from the same time point that are sensitive to phages. Black bars are transfer (time point) 4; light grey bars, transfer 8; dark grey bars, transfer 12.
Morgan et al. BMC Evolutionary Biology 2007 7:1 doi:10.1186/1471-2148-7-1