Experimental studies of evolution have increased greatly in recent years, stimulated by the growing power of genomic tools. However, organismal fitness remains the ultimate metric for interpreting the
We study the adaptation dynamics of a maladapted asexual population on rugged fitness landscapes with many local fitness peaks. The distribution of beneficial fitness effects is assumed to belong to o
Here we studied how the distribution of fitness effects changes over 15,000 generations of adaptation in the Lenski's Long-Term Evolution Experiment. We compared the distribution of fitness effects in
