Title: Resistance to Soybean Mosaic Virus in Soybeans
Abstract: Lim, S. M., 1985. Resistance to soybean mosaic virus in soybeans. Phytopathology 75:199-201. Soybean line SS74185 (PI 486.355), which was collected in Korea, was dominant gene. The F2 plants derived from all the possible crosses involving resistant to all previously known seven (GI-G7) strains of soybean mosaic three resistant lines segregated in a 15 resistant: 1 susceptible ratio when virus (SMV) and to an unclassified SMV isolate, C14. Soybean line Suweon inoculated with SMV strains G2, G7, or isolate C14 as expected for 97 (PI 483.084) previously identified as resistant to the seven strains was dominant genes segregating independently. These results indicated that susceptible to isolate C14. PI 96983 was susceptible to strain G7 but was resistance in each of the three lines P196983, P1483.084, and P1486.355 was resistant to strains Gl-G6 and isolate C14. Isolate C14 caused necrotic conferred by a different dominant gene. P1 96983 carries a dominant gene symptoms in susceptible soybeans and its pathogenicity was shown to be Rsv that conditions resistance to strains SMV-1 (G2) and SMV-l-B (G3). different from the seven strains previously described. The F 2 plants from Genes in P1483.084 and P1486.355 cannot be assigned until further tests are crosses of the susceptible cultivars Williams 79 and Franklin with PI performed to determine which of the genes are different from a newly 483.084 segregated in a 3 resistant: 1 susceptible ratio when inoculated with identified gene Rsv2 that confers resistance to all seven strains in soybean strains G2 or G7. The F2 plants from cross P196983 X P1483.084 inoculated cultivar Raiden (P1 360.844). P1360.844 plants inoculated with isolate C 14 with G7 also segregated in a 3 resistant: 1 susceptible ratio indicating that developed a severe necrotic symptom similar to the reaction of P1 483.084, resistance in PI 483.084 to these two SMV strains was conferred by a single indicating that resistance in PI 483.084 to all seven SMV strains was dominant gene. The F2 progenies of a cross (P1 483.084 X P1 486.355) that probably conditioned by the same gene, Rsv2, and that the resistance gene were inoculated with isolate C14 segregated in a 3 resistant:l susceptible in PI 486.355 was different from gene Rsv2. ratio indicating that resistance in PI 486.355 was conferred by a single
Publication Year: 1985
Publication Date: 1985-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 68
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