Fruitflies prioritize mating over survival: study RSocPublishing
. By infecting both male and female fruit flies with different pathogens, ranging in type and severity, she made the surprising discovery that courtship and mating behaviors were similar in both infected and uninfected flies. This was also true when the flies'was artificially activated using genetic manipulation. Moreover, uninfected flies mated equally frequently with both infected and healthy partners, suggesting that they do not select against mates who are infected.
Flies are not oblivious to infection, however. Previous studies have shown that infected flies can show abnormal locomotion, sleep and feeding behaviors. Consequently, this new study suggests that courtship and mating behaviors are prioritized, even when other behaviors are altered during the development of the infection.
When faced with a potential life threat, some animals respond by investing more into reproduction, likely in attempt to pass on genes to the next generation. This may well be what is happening withflies in the conditions tested in the lab. More work is needed to find out what is going on in the brain to maintain reproductive behaviors in the face of infection.
The team worked in collaboration with Professor Marc Dionne , Dr. Esteban Beckwith and Professor Robin May .
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