Data from: Adaptation to abiotic conditions drives local adaptation in bacteria and viruses coevolving in heterogeneous environments

Parasite local adaptation, the greater performance of parasites on their local
compared with foreign hosts, has important consequences for the maintenance
of diversity and epidemiology. While the abiotic environment may
significantly affect local adaptation, most studies to date fail to either incorporate
the effects of the abiotic environment, or to separate them from those
of the biotic environment. Here, we tease apart biotic and abiotic components
of local adaptation using the bacterium Pseudomonas fluorescens
and its viral parasite bacteriophage F2. We coevolved replicate populations
of bacteria and phages at three different temperatures, and determined their
performance against coevolutionary partners from the same and different
temperatures. Crucially, we measured performance at different assay temperatures,
which allowed us to disentangle adaptation to biotic and abiotic
habitat components. Our results show that bacteria and phages are more
resistant and infectious, respectively, at the temperature at which they
previously coevolved, confirming that local adaptation to abiotic conditions
can play a crucial role in determining parasite infectivity and host resistance.
Our work underlines the need to assess host–parasite interactions across
multiple relevant abiotic environments, and suggests that microbial adaption
to local temperatures can create ecological barriers to dispersal across
temperature gradients.