Vol. 6 No. 1 (2000)

Articles

The genetic background of resistance to common bacterial blight in newly identified common bean lines on the basis of inheritance studies

Published February 23, 2000
Authors
E. Mergenthaler
Plant Protection Institute, Hungarian Academy of Sciences, 1525 Budapest, P.O. Box 102, Hungary
, Bisztray Gy.
Szent István University, Faculty of Horticulture, Dep. of Genetics and Plant Breeding, 1502 Budapest, P.O. Box 53., Hungary
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Keywords
Phaseolus bean Xanthomonas resistance inheritance
How to Cite
Selected stlye: APA
Mergenthaler, E., & Gy., B. (2000). The genetic background of resistance to common bacterial blight in newly identified common bean lines on the basis of inheritance studies. International Journal of Horticultural Science, 6(1), 77–81. https://doi.org/10.31421/IJHS/6/1/73
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Copyright (c) 2018 International Journal of Horticultural Science

This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Common bacterial blight (CBB), caused by Xanthomonas campestris pv. phaseoli (Xcp). is a major disease problem of common bean (Phaseolus vulgaris L.). The inheritance of resistance in Xrl and Xr2 lines to two isolates of Xcp was studied in the F2 and F3 popu­lations from the crosses between these lines and the Masay variety (susceptible to Xcp). Segregation patterns indicated that different single recessive genes presumably in coupling phase linkage determined the resistance to the HUN and EK-1 1 strains of Xcp in both lines. The presence of some minor, modifying genes beside the monogenic genetic background of resistance was also observed. Xrl and Xr2 lines represent valuable new monogenic genetic sources in resistance breeding to CBB.

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