Dr. David Dolezel (Biology Centre CAS)
in: 'Frontiers in Ecology and Evolution': "Circadian clock and seasonality in the insect model, Pyrrhocoris apterus"
Mit Dr. David Dolezel (Biology Centre CAS)
Daylength measuring devices such as the photoperiodic timer enable animals to anticipate and thus survive adverse seasons. This ability has contributed to the great success of insects living in temperate regions. Yet the basis of photoperiodic sensing remains elusive in insects, because of the lack of suitable genetic models expressing photoperiod-dependent seasonal phenotypes. We have developed the linden bug, Pyrrhocoris apterus, into a genetically tractable model with a robust, photoperiod-dependent reproductive arrest (diapause). The talk will include evolution and functional analysis of circadian clock genes in the linden bug, a possible role for the circadian clock in seasonality, and crosstalk between juvenile hormone signaling and reproductive diapause