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SUMMARY:Novelty and developmental systems drift in embryos of flies - Prof
 essor Urs Schmidt-Ott from the Department of Organismal Biology &amp\; Ana
 tomy\, University of Chicago 
DTSTART:20230913T130000Z
DTEND:20230913T140000Z
UID:TALK202513@talks.cam.ac.uk
CONTACT:Caroline Newnham
DESCRIPTION:Selected results from our research on embryonic development in
  various fly species (Diptera) will be used to address the question of how
  developmental processes undergo major evolutionary change. The first part
  of the presentation examines the evolution of extraembryonic tissue and f
 ocuses on how the developmental trajectories of serosa and amnion tissues 
 merged in higher flies into one\, called amnioserosa. The second part exam
 ines findings pertaining to the question of how unique new axis-specifying
  genes acquired their function. I will end this section by discussing conc
 eptual parallels between the evolution of extraembryonic tissues and anter
 ior determinants. The third part briefly explores the question of how and 
 why dipterans evolved new mechanisms of axis specification that are striki
 ngly different from a widely conserved core mechanism found in other metaz
 oans. The fourth part will raise open question that we have started to tac
 kle. It is my hope that the seminar also will convey the unique added valu
 e of a multi-species approach in understanding developmental mechanisms wh
 ile looking at their evolution.
LOCATION:Biffen Lecture theatre and Zoom
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