|Smith, J - MISSISSIPPI STATE UNIV|
|Singh, Shree - UNIV OF IDAHO|
Submitted to: Germplasm Release
Publication Type: Germplasm Release
Publication Acceptance Date: March 12, 2005
Publication Date: May 1, 2005
Citation: Miklas, P.N., Smith, J.R., Singh, S.P. 2005. Release of common bacterial blight resistant dark red kidney bean germplasm line usdk-cbb-15. Germplasm Release. Annual Report Bean Improv. Coop. 48:192-193. Technical Abstract: The Agricultural Research Service, U.S. Department of Agriculture, and the Idaho Agricultural Experiment Station announce the release of USDK-CBB-15 dark red kidney (Phaseolus vulgaris L.) germplasm line with a high level of resistance to common bacterial blight caused by Xanthomonas axonopodis pv. phaseoli (Xap). Scientists participating in the development of this germplasm were Phil Miklas (USDA-ARS, Prosser, WA), James Smith (USDA-ARS, Stoneville, MS), and Shree Singh (University of Idaho). Common bacterial blight is a major seed-borne disease of dry and snap beans worldwide. The disease is endemic to the U.S. bean production regions east of the continental divide and problematic in Colorado, Michigan, Minnesota, Nebraska, New York, North Dakota, and Wisconsin. Genetic resistance in the host provides the most effective control of this disease, and planting certified disease-free seed is critical. USDK-CBB-15 possesses two major QTL and perhaps other minor genes that confer a high level of resistance to Xap. Marker-assisted selection using the SAP6 and SU91 markers tightly linked with QTL derived from great northern landrace cultivar Montana No.5 and breeding line XAN 159, respectively, enabled us to expedite development of USDK-CBB-15 for combating this entrenched disease problem in the U.S.