Submitted to: Germplasm Release
Publication Type: Germplasm Release
Publication Acceptance Date: 3/1/2000
Publication Date: 7/1/2000
Citation: MIKLAS, P.N., SMITH, J.R., KELLY, J.D. RELEASE OF KIDNEY AND CRANBERRY DRY BEAN GERMPLASM LINES WITH RESISTANCE TO COMMON BACTERIAL BLIGHT. GERMPLASM RELEASE, p. 3. 2000. Interpretive Summary: The USDA-ARS Dry Edible Bean Project at Prosser, WA, released five new bean germplasm lines, three kidney and two cranberry with improved resistance to common bacterial blight. Common bacterial blight is a seed borne vegetative disease that plagues bean production worldwide. It is a major disease in the midwestern United States (Michigan, North Dakota, Nebraska, and eastern nColorado). In addition to common bacterial blight resistance, the lines possess genes conditioning resistance to bean common mosaic virus and anthracnose. These lines will be useful for improving common bacterial blight resistance in kidney and cranberry dry edible bean market classes.
Technical Abstract: The USDA-ARS and the Agricultural Experiment Station of Michigan State University announce the release of five dry edible common bean (Phaseolus vulgaris L.) germplasm lines with moderate levels of resistance to common bacterial blight (CBB) caused by Xanthomonas campestris pv. phaseoli. Common bacterial blight is a seed borne vegetative disease that plagues bean production worldwide. It is a major disease in the midwest United States (Michigan, North Dakota, Nebraska, and eastern Colorado), and is the primary reason why most bean seed production occurs in the west (California, Colorado, Idaho, Oregon, and Washington). The lines possess resistance to common bacterial blight derived from one of four sources AFR 603, WBB-48-2, Montcalm, and SUG 87. The resistance in these sources appears to derive, at least in part, from Great Northern #1 sel 27 as indicated by pedigree or presence of the SCAR (sequence characterized amplified region) marker SAP6820 linked with a QTL (quantitative trait locus) for resistance to common bacterial blight on linkage group B10. The lines exhibited resistance to ashy stem blight (Macrophomina phaseolina) and rust (Uromyces appendiculatus) epidemics in Puerto Rico. In greenhouse tests, the lines expressed the I gene for resistance to bean common mosaic virus (BCMV) and bean common mosaic necrosis virus (BCMNV), and expressed either the Co-1 gene for resistance to race 73 of anthracnose (Colletotrichum lindemuthianum), the Co-2 gene for resistance to Race 7, or both anthracnose resistance genes. These germplasm lines will be useful for improving the common bacterial blight resistance in light red kidney, dark red kidney, and cranberry dry edible bean market classes.