Accumulation of deleterious mutations during bacterial range expansions
L. Bosshard, I. Dupanloup, O. Tenaillon, R. Bruggmann, M. Ackermann, S. Peischl, L. Excoffier
This study shows that mutator bacteria accumulate deleterious mutations during range expansion, reducing their fitness, while low mutation rate strains maintain stability.
bioRxiv · Dec 13, 2016Evolutionary Biology