Seminar - Mark Rausher

Dr. Mark Rausher is pictured
September 26, 2022 - 12:00pm
Location: 
601 Fairchild
Department of Biology
Duke University

Host: Guy Sella

Title: Gene duplication facilitates, but does not trigger, flower color pattern diversification in Clarkia

Abstract: Compared to sister genera, the genus Clarkia has undergone an explosion of flower color pattern diversity. To understand why this may have occurred, we have examined the genetic control of pattern elements and how it has evolved. Individual pattern elements are controlled by different paralogs of R2R3Myb transcription factors. Duplication of these genes has facilitated the evolution of novel pattern elements and thus facilitated the evolution of pattern diversity. However, these duplications occurred long before the origin and diversification of Clarkia, indicating that duplication was not the trigger for this diversification.

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