Daisy Crowson, Ph.D. student

Department of Ecology & Evolutionary Biology
University of Toronto
25 Willcocks Street
Toronto, Ontario, Canada
M5S 3B2

Office: Earth Science Building 2044, 416-978-7177
E-mail: daisy.crowson@mail.utoronto.ca

Daisy Crowson


B.Sc. Evolutionary Biology, University of Edinburgh (2012)

Current Position

Ph.D. student Department of Ecology & Evolutionary Biology, University of Toronto
Project: Evolutionary genetics of sex chromosomes in the plant genus Rumex (Co-advised by Spencer Barrett & Stephen Wright)


Broadly I am interested in evolutionary genetics, especially the evolution of sexual and mating systems, the effect of recombination on molecular evolution, and the evolution of sex chromosomes. Plants offer ideal study systems for pursuing these interests because of their remarkable diversity and comparative lability of sexual and mating systems.

I am studying the evolution of sex chromosomes in the plant genus Rumex (sorrels) using comparative genomic approaches. My research explores the evolutionary forces governing the formation of heteromorphic sex chromosomes, such as suppression of recombination and subsequent degeneration of the Y chromosome. I am also interested in the broader consequences of sex chromosome evolution, including their impact on sexual dimorphism, sex ratios and reproductive isolation.

Rumex acetosa male

Figure 1. Rumex hastatulus (female left, male right)     Figure 2. Rumex acetosa (male)

Rumex rothschildianus female

Figure 3. Rumex rothschildianus (female)                     Figure 4 Rumex nivalis (male)