Mechanisms of quantitative disease resistance in plants
Elizabeth French1, Bong-Suk Kim1, Anjali S Iyer-Pascuzzi1
1Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907, United States.
Abstract:
Quantitative disease resistance (QDR) causes the reduction, but not absence, of disease, and is a major type of disease resistance for many crop species. QDR results in a continuous distribution of disease scores across a segregating population, and is typically due to many genes with small effects. It may also be a source of durable resistance. The past decade has seen significant progress in cloning genes underlying QDR. In this review, we focus on these recently cloned genes and identify new themes of QDR emerging from these studies.
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