Thursday Seminar: The origin of red flowers: genetic mechanisms and macroevolutionary patterns


Oct
23
2014

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  • Speaker: Stacey D. Smith, Assistant Professor, Department of Ecology and Evolutionary Biology, University of Colorado-Boulder
  • Host Department: Ecology and Evolutionary Biology (EEB)
  • Date: 10/23/2014
  • Time: 4:10 PM - 5:00 PM

  • Location: 1210 Chemistry

  • Description:

    hummingbird sipping nectar from flowers
    Abstract
    Angiosperms display an incredible diversity of flower colors, although relatively little is known about macroevolutionary trends in flower color and the genetic basis for different classes of color transitions. My talk will focus on the distribution of red flowers and the genetic basis for the origin of this trait. Studies in a handful of taxa, including my own in Iochroma, suggest that the convergent evolution of red flowers often involve a similar suite of genetic changes, including loss of expression, changes in enzymatic function, and loss of function mutations.  I will discuss the implications of these genetic changes for the macroevolution of flower color.

    Host: Professor Stephen Smith

    Coffee and cookies will be served at 4 p.m.