InterventionAccelerated photoperiodic cycle
Alternate Name
OrganismMicrocebus murinus
Aging PhenotypeShortened life-span
Allele TypeN/A
DescriptionAcceleration of seasonal rhythms by exposing the animals to an accelerated photoperiodic regimen consisting of 5 months of long photoperiod followed by 3 months of short photoperiod resulted in an approximately 30% reduction in mean life-span and a 20% reduction in maximum life-span (Perret, 1997).
Gene Function
Other PhenotypesThe lesser mouse lemur, Microcebus murinus, a small prosimian primate, exhibits seasonal rhythms strictly controlled by photoperiodic variations. Exposure to day lengths shorter than 12 h results in complete sexual rest, fattening, lethargy, and reduced behavioral activities; whereas exposure to day lengths greater than 12 h induces sexual activity, an increase in behavioral activities, and high hormonal levels (Perret, 1997).
Primary ReferencePerret, M. (1997). Change in photoperiodic cycle affects life span in a prosimian primate (Microcebus murinus). J Biol Rhythms 12, 136-45. [Abstract]
Other References
Relevant Links
Keywordscircadian clock, rhytmic behaviors