The #gut_microbiota of fruit flies was manipulated so that the flies had either Acetobacter pomorum (AP), a bacterium commonly found in vinegar; or Lactobacillus plantarum (LP), a bacterium commonly found in #dairy_products, in their guts. It was revealed that male flies with LP bacteria had sex for longer durations and produced more #children than male flies having AP bacteria.
Furthermore, in some cases, the parents' gut bacteria was also found to impact their children. Daughters with AP parents had a lower #body_mass, than daughters with one or both parents having LP bacteria, suggesting the role of gut bacteria in the #fitness of the offspring.
These findings can be loosely extrapolated to us humans, as a significant part of our #genome is similar to the fly genome. Similar experiments in humans could one day shed light on how the gut bacteria influence our #behaviour. Such studies would further enrich our understanding of behavior as a complex entity, as it has already been established that the gut microbiota impacts our #mood.Tags: commensal bacteria, drosophila, fertility, gut bacteria, gut microbiota, mating and reproduction, mating preference, sexual behavior