Circadian clocks orchestrate daily activity patterns and free running periods of locomotor activity under constant conditions. While the first often depends on temperature, the latter is temperature-compensated over a physiologically relevant range. Here, we explored the locomotor activity of the temperate housefly Musca domestica Under low temperatures, activity was centered round a major and broad afternoon peak, while high temperatures resulted in activity throughout the photophase with a mild midday depression, which was especially pronounced in males exposed to long photoperiods. While period (per) mRNA peaked earlier under low temperatures, no temperature-dependent splicing of the last per 3' end intron was identified. The expression of timeless, vrille, and Par domain protein 1 was also influenced by temperature, each in a different manner. Our data indicated that comparable behavioral trends in daily activity distribution have evolved in Drosophila melanogaster and M. domestica, yet the behaviors of these two species are orchestrated by different molecular mechanisms.

• Klíčová slova
• circadian clock genes, locomotor activity, mRNA splicing, temperature compensation of circadian rhythms, transcription,
• MeSH
• 3' nepřekládaná oblast genetika   MeSH
• časové faktory MeSH
• cirkadiánní rytmus genetika   MeSH
• Drosophila melanogaster genetika   MeSH
• exony genetika   MeSH
• fotoperioda MeSH
• fylogeneze MeSH
• hmyzí geny * MeSH
• introny genetika   MeSH
• kondiční příprava zvířat MeSH
• kryptochromy genetika   MeSH
• messenger RNA genetika   metabolismus   MeSH
• moucha domácí MeSH
• pohybová aktivita MeSH
• promotorové oblasti (genetika) genetika   MeSH
• regulace genové exprese MeSH
• sestřih RNA genetika   MeSH
• teplota * MeSH
• zvířata MeSH
• Check Tag
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• 3' nepřekládaná oblast MeSH
• kryptochromy MeSH
• messenger RNA MeSH