Acknowledgements
We thank the Deutsche Forschungsgemeinschaft that funded this project
with a grant to BF (DFG FE 1333/6-2) and SF (DFG FO 298/19-2) within the
research unit FOR-2281. We are grateful to Matteo Negroni for his help
during ant collection. We thank our technician Marion Kever for
assistance during dissections and RNA extraction. We are very grateful
to Marah Stoldt for her precious help with the analysis of the
transcriptomic data. Thanks to the Southwestern Research Station
(Portal, Arizona) for the support to obtain an ant collection permit
from the Coronado National Forest.