Biology Postdoc Minisymposium II
Name: Jack Cerchiara, PhD
Title: Telomere maintenance and corticosterone in Magellanic penguins
Name: Jack Cerchiara, PhD
Title: Telomere maintenance and corticosterone in Magellanic penguins
Metamorphosis of the fruit fly Drosophila melanogaster is regulated by two hormones, ecdysone and juvenile hormone (JH). The developing eye and optic lobe (OL) present a unique challenge to this hormonal control because the eye forms progressively over a two day period and the resulting wave of photoreceptor ingrowth directs a corresponding wave of neural organization to the underlying OL. These waves of development occur during phasic pulses of both ecdysone and JH.
In dominating most terrestrial, marine and aerial environments, insects and crustaceans have evolved complex behaviors controlled by a sophisticated, versatile nervous system. Our work on the segmental nervous system of Drosophila over the past 10 years has shown that the insect CNS is built from a set of functional modules. Each module is comprised of a cardinal class of interneurons that arises from a specific stem cell and that typically forms a particular component of the circuitry controlling either walking or flight. The set of stem cells that make a segmental g
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