Submitted to: American Phytopathological Society Annual Meeting
Publication Type: Proceedings
Publication Acceptance Date: May 1, 2005
Publication Date: August 1, 2005
Citation: Miklas, P.N. 2005. Pyramiding disease resistance in beans. American Phytopathological Society Annual Meeting Abstracts, Austin, TX. S122. Technical Abstract: Genetic resistance within the host plant is a major component of integrated strategies used to control many of the diseases that limit common bean (Phaseolus vulgaris L.) production worldwide. For more sustainable (durable) genetic resistance, combining more than one gene effective against an individual pathogen is desired to: i) acquire pyramided resistance against a prominent pathotype; ii) obtain broad resistance against a range of pathotypes; iii) retain defeated resistance genes; iv) combine different mechanisms of resistance, and v) increase levels of partial resistance by combining genes (QTL) with additive effects. Examples above for combining genes for improved and more durable resistance against bacterial, fungal, or viral pathogens in bean will be discussed. The use of marker-assisted selection to achieve resistance gene combinations will be emphasized.