Correction to: The ISME Journal, published online 12 October 2022

In the sentence beginning ‘One study shows that...’ in this article, the term ‘Escherichia coli’ should have read ‘Salmonella chomosome’

In this article ref. 31 was incorrect and should have been 31. Knöppel A, Lind PA, Lustig U, Näsvall J, Andersson DI. Minor fitness costs in an experimental model of horizontal gene transfer in bacteria. Mol. Biol. Evol.; 2014 31(5):1220–7;

The original article has been corrected.