Home Max Planck Research Groups Max Planck Research Groups Max Planck Research Groups are independent research groups funded by the central Max Planck Society. Plant Pathogen Evolution - Honour McCann Understanding the origins of plant disease outbreaks, how pathogens adapt to novel hosts and coevolve with ancient ones. more Mutualisms - Hassan Salem Mutually beneficial species interactions can fuel adaptation and diversification. We explore how mutualisms are maintained, and the consequences of coevolution between a host and its symbiont. more