caa a22 4500 477135730 CHVBK 20180405111717.0 cr unu---uuuuu 170330e19970501xx s 000 0 eng 10.1023/A:1002906023336 doi (NATIONALLICENCE)springer-10.1023/A:1002906023336 Resistance to late blight in potato. A putative gene that suppresses R genes and is elicited by specific isolates [Elektronische Daten] [M.E. Ordoñez, G.A. Forbes, B.R. Trognitz] Eleven progenies, ten bi-parental and one selfed, of tetraploid potato were assessed for phenotypic segregation ratios of resistance to susceptible individuals against two isolates of P. infestans, one avirulent to all 11 known potato R genes (avirulent pathotype) and one virulent to eight R genes (virulent pathotype). Assuming Mendelian inheritance of independent R genes, the numbers of individuals segregating for resistance to both races could not be explained sufficiently for all progenies. However, the assumed presence of dominant, specific suppressors of the R gene function that were elicited by specific isolates of the fungus and that segregated in the host independently from R genes explained all frequencies of resistant and susceptible individuals in each of the progenies studied. Kluwer Academic Publishers, 1997 late blight nationallicence Phytophthora infestans nationallicence race-specific resistance nationallicence R gene nationallicence suppressor of R gene nationallicence Ordoñez M.E. International Potato Center, P.O. Box 17-21-1977, Quito, Ecuador aut Forbes G.A. International Potato Center, P.O. Box 17-21-1977, Quito, Ecuador aut Trognitz B.R. International Potato Center, P.O. Box 1558, Lima, Peru aut Euphytica Kluwer Academic Publishers 95/2(1997-05-01), 167-172 0014-2336 95:2<167 1997 95 10681 https://doi.org/10.1023/A:1002906023336 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002906023336 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ordoñez M.E. International Potato Center, P.O. Box 17-21-1977, Quito, Ecuador aut NATIONALLICENCE 700 1- Forbes G.A. International Potato Center, P.O. Box 17-21-1977, Quito, Ecuador aut NATIONALLICENCE 700 1- Trognitz B.R. International Potato Center, P.O. Box 1558, Lima, Peru aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 95/2(1997-05-01), 167-172 0014-2336 95:2<167 1997 95 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer