Coool paper in PLOS!!
Slack et al describe a mechanism by which E. coli might induce gene amplification ( several copies of the same gene) under stress conditions. This is of extreme interest to me! As Adam Ierimenko in Grey Thumb said “evolution of evolvability”.
So basically, what coli does is to duplicate certain genes when “under pressure”. This might be advantageous in many different ways: increase the expression of the gene (now you have two copies), new gene functions (now you have a gene-a pig) and subsequently genome evolution.
This adds up to the transposons shuffling under stress.
More beautiful details of nature’s creativity! I love it!