caa a22 4500 44532306X CHVBK 20180317142710.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10681-010-0313-x doi (NATIONALLICENCE)springer-10.1007/s10681-010-0313-x Dominant gene for common bean resistance to common bacterial blight caused by Xanthomonas axonopodis pv. phaseoli [Elektronische Daten] [Mildred Zapata, James Beaver, Timothy Porch] The common bacterial blight pathogen [Xanthomonas axonopodis pv. phaseoli (Xap)] is a limiting factor for common bean (Phaseolus vulgaris L.) production worldwide and resistance to the pathogen in most commercial cultivars is inadequate. Variability in virulence of the bacterial pathogen has been observed in strains isolated from Puerto Rico and Central America. A few common bean lines show a differential reaction when inoculated with different Xap strains, indicating the presence of pathogenic races. In order to study the inheritance of resistance to common bacterial blight in common bean, a breeding line that showed a differential foliar reaction to Xap strains was selected and was crossed with a susceptible parent. The inheritance of resistance to one of the selected Xap races was determined by analysis of segregation patterns in the F1, F2, F3 and F4 generations from the cross between the resistant parent PR0313-58 and the susceptible parent ‘Rosada Nativa'. The F1, F2 and F3 generations were tested under greenhouse conditions. Resistant and susceptible F3:4 sister lines were tested in the field. The statistical analysis of all generations followed the model for a dominant resistance gene. The resistant phenotype was found to co-segregate with the SCAR SAP6 marker, located on LG 10. These results fit the hypothesis that resistance is controlled by a single dominant gene. The symbol proposed for the resistance gene is Xap-1 and for the bacterial race, XapV1. Springer Science+Business Media B.V., 2010 Gene-for-gene interaction nationallicence Host-pathogen interaction nationallicence Resistance gene nationallicence Pathogenic races nationallicence Phaseolus vulgaris nationallicence Zapata Mildred Department of Crops and Agro-Environmental Sciences, University of Puerto Rico, 00681-9000, Mayagüez, PR, USA aut Beaver James Department of Crops and Agro-Environmental Sciences, University of Puerto Rico, 00681-9000, Mayagüez, PR, USA aut Porch Timothy USDA-ARS Tropical Agriculture Research Station, 00680, Mayagüez, PR, USA aut Euphytica Springer Netherlands 179/3(2011-06-01), 373-382 0014-2336 179:3<373 2011 179 10681 https://doi.org/10.1007/s10681-010-0313-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-010-0313-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zapata Mildred Department of Crops and Agro-Environmental Sciences, University of Puerto Rico, 00681-9000, Mayagüez, PR, USA aut NATIONALLICENCE 700 1- Beaver James Department of Crops and Agro-Environmental Sciences, University of Puerto Rico, 00681-9000, Mayagüez, PR, USA aut NATIONALLICENCE 700 1- Porch Timothy USDA-ARS Tropical Agriculture Research Station, 00680, Mayagüez, PR, USA aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 179/3(2011-06-01), 373-382 0014-2336 179:3<373 2011 179 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer