Irwin Goldman

Irwin has been a faculty member at UW-Madison since 1992 and is currently a professor in the Department of Horticulture. He is a plant breeder and runs breeding programs on carrot, onion, and table beet. Irwin teaches courses in plant breeding and genetics, vegetable crops, plants and human wellbeing, and evolutionary biology. You can contact him at or 608-262-7781.

Current Graduate Students, Undergraduate Students, and  Scientists

Photo by Michael P. King

Katharina Wigg

Katharina Wigg is a graduate student working on breeding for resistance to Rhizoctonia solani in table beet. Katharina has a B.S. from Iowa State University.


Photo by Michael P. King

Solveig Hanson

Solveig,, is a graduate student working on genetic aspects of flavor and culinary quality in table beet. Solveig has a B.A. from Grinnell College, and extensive experience as an organic farmer and the seed industry.


Photo by Michael P. King

Claire Luby

Claire Luby is a Faculty Associate working on seed sovereignty and seed stewardship with Wisconsin tribes. She is also teaching introductory horticulture, Horticulture 120.


Scott Brainard

Scott Brainard is a graduate student working on the genetic control of market class and root shape in carrot. Scott has an M.S. from Wageningen University and a B.A. from Swarthmore.

Chandler Meyer, Shayna Moss, Taylor Sefzik

Chandler Meyer (left) is  Ph.D. student who is co-advised with Patrick Krysan. Chandler has a B.S. degree from the University of Wisconsin-Madison and is working on a gene editing project in carrot, focusing on the production of carrot haploids.


Recent Graduate Students, Postdoctoral Researchers, and Undergraduate Students

(use your mouse to hover over image for name)

Recent Graduates

 LynnMaherPortrait  Lynn Maher

Lynn, completed her Ph.D. in late 2017 working on breeding, genetics, and biosynthesis of  geosmin in table beet. Lynn is currently a carrot breeder with  Bejo Seeds in Idaho.

Claire LubyClaire Luby at OSSI Rally

Claire,, is a Postdoctoral Research Associate at the University of Illinois, having recently completed her Ph.D. working on carrot breeding and genetics.


Chris D'Angelo Crescio Farm August 2013  Chris D’Angelo

Chris,, recently completed his Ph.D. working on the genetic and environmental control of vernalization in onion. Chris is a sweetcorn breeder with Illinois Foundation Seed in Wisconsin.


Undergraduate Students


Matthew Mirkes


Hannah DePorter

Hayden DePorter

Alex Bauch

Alex Bauch


Taylor Sefzik

Taylor Sefzik

Shayna Moss

Shayna Moss


Iszie Tigges-Green

Iszie Tigges-Green

Former Graduate and Undergraduate Students, Postdocs, and Staff


Girard Gorelick

Ryan Alpers




Ryan Alpers

Jason Holman







Jason Holman

ChristinaChristina Arnt




Sara ArscottSara Arscott, Ph.D.




margaret_branson1_smallMargaret Branson




Nick_in_Greenhouse1_smallD. Nicholas Breitbach




Bill Briggs and StudentsBill Briggs, Ph.D.




janJan Debaene, Ph.D.







eaganKaren Eagen, M.S.




EllieAmyGCMSAmy Freidig (right), M.S.



growing_emilie_smEmilie Dirkse Hansen, M.S.



Jeremy Hart and Greg Vogel, 2013  Jeremy Hart

Jeremy (left)

marilyn_smallMarilyn H. Y. Hovius, Ph.D.



veronicagaertner_smallVeronica Justen, Ph.D.




Murray Kapell, M.D.

IMG_0125Bjorn Karlsson





tom_koch_smallTom Koch, Ph.D.



IMG_0123Molly Lloyd




LynnMaherPortraitLynn Maher




CarrotsAinslieMcMasterAinslie McMaster




Natlaie and AmyNatalie Mello (left), Amy Freidig (right)




KathrynKathryn Orvis, Ph.D.







EllieOttUWRFEllie Ott



marypicMary Palmer





Heidi_Platt1_smallHeidi Platt



louisa1Louisa Poon, Ph.D., DVM







KarenKaren Sanguinet, Ph.D.





MaggieSMaggie Schaber, M.S.




schroeckGeoffrey Schroeck








Allison and ChristinaAllison Tiefenthaler (left), Christina Arnt (right)




tozukaAzumi Tozuka, M.S.




cristyChristy Walcher




minMin Wang, Ph.D.




IMG_0124Beth Workmaster




Lauren with in situ vern plants  Lauren Brzozowski

   Gregory VogelGreg Vogel Beet Harvest 2012




Not pictured: Jennifer Baeten