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Research Abstracts Online
January 2008 - March 2009

University of Minnesota Twin Cities
College of Food, Agricultural, and Natural Resource Sciences
Department of Agronomy and Plant Genetics

PI: David F. Garvin

Genetic and Genomic Approaches to Improve Disease Resistance and Nutrient Value in Wheat

The Garvin laboratory is pursuing research to identify genes that accompany resistance in wheat to infection by rust pathogens. They use Affymetrix GeneChips to identify changes in gene expression between resistant and susceptible wheat lines after exposure to the causal agent of leaf rust, and to track the expression of genes of interest over time. They are also employing the model plant Brachypodium as a surrogate to understand more fully the molecular basis of rust resistance in wheat. During this period, the group has identified gene expression profiles that indicate coordinated metabolic responses in wheat that provide energy needed to sustain basal defense responses to leaf rust. They are now characterizing temporal aspects of the observed gene changes in wheat seedlings to the pathogen causing stem rust and comparing the results between these experiments and those completed for the pathogen causing leaf rust.

Group Member

Melvin D. Bolton, Northern Crops Science Laboratory, Fargo, North Dakota