Variation and asymmetry in host-symbiont dependence in a microbial symbiosis.
Ewan J A MinterChris D LoweMegan E S SørensenA Jamie WoodDuncan D CameronMichael A BrockhurstPublished in: BMC evolutionary biology (2018)
These data show that the Paramecium-Chlorella interaction exists at the boundary between facultative and obligate symbiosis, and further suggest that the host is more likely to evolve dependence than the algal symbiont.