Marie Jasieniuk

Marie Jasieniuk

Position Title

Department of Plant Sciences, College of Agricultural and Environmental Sciences

269 Robbins Hall

Research Interests

Population genetics and evolution of agricultural weeds and invasive plants

The Jasieniuk lab studies the population genetics, molecular ecology, and evolution of agricultural weeds and invasive plants. Our research focuses on elucidating the genetic, demographic, and evolutionary processes underlying the introduction, establishment, and spread of weeds and invasive plants, and their adaptation to changing environments, including management practices.

Grad Group Affiliations

  • Ecology Graduate Group
  • Horticulture and Agronomy Graduate Group
  • Plant Biology

Specialties / Focus

  • Systematics and Evolutionary Biology


  • PLS 012 Plants and Society, Spring
  • SAS 012 Plants and Society, Spring
  • BIS 2B Introduction to Biology: Principles of Ecology and Evolution, Winter
  • PBI 200A Plant Biology Graduate Group Core Course, Fall


  • Jasieniuk Lab


  • 1985 PhD Biology McGill University


Clark, L.V. and M. Jasieniuk. 2012. Spontaneous hybrids between native and exotic Rubus in the Western United States produce offspring both by apomixis and by sexual recombination. Heredity, In press.

Firestone, J.L. and M. Jasieniuk. 2012. Seed production is reduced by small population size in natural populations of the invasive grass Lolium multiflorum. Biological Invasions, In press.

Clark, L.V. and M. Jasieniuk. 2011. POLYSAT: an R package for polyploid microsatellite analysis. Molecular Ecology Resources 11:562-566.

Kleist, A.C. and M. Jasieniuk. 2011. A molecular phylogenetic analysis of invasive and ornamental brooms and their relationships within the Genistoid legumes. Molecular Phylogenetics and Evolution 61:970-977.

Okada, M., M. Lyle, and M. Jasieniuk. 2009. Inferring the introduction history of the invasive apomictic grass Cortaderia jubata using microsatellite markers. Diversity and Distributions 15:148-157.

M. Jasieniuk, R. Ahmad, A.M. Sherwood, J.L. Firestone, A. Perez-Jones, W.T. Lanini, C. Mallory-Smith, and Z. Stednick. 2008. Glyphosate-resistant Italian ryegrass (Lolium multiflorum) in California: distribution, response to glyphosate, and molecular evidence for an altered target enzyme. Weed Science 56:496-502.

Okada, M., B.J. Grewell, and M. Jasieniuk. 2009. Clonal spread of Ludwigia hexapetala and L. grandiflora in freshwater wetlands of California. Aquatic Botany 91:123-129.

Okada, M., R. Ahmad, and M. Jasieniuk. 2007. Microsatellite variation points to local landscape plantings as sources of invasive pampas grass (Cortaderia selloana) in California. Molecular Ecology 16:4956-4971.