Growth of evolved isolates at elevated temperature. Culture density (A600) of parental, F1, founding and selected hybrid strains from each experimental population following 48 h growth in liquid, low-nitrogen, minimal medium at 40°C. Asterisk indicates significantly different growth, relative to all other isolates (P < 0.05, Mean ± S.E.).
Piotrowski et al. BMC Evolutionary Biology 2012 12:46 doi:10.1186/1471-2148-12-46