The Journal of Heredity 1982:73(3):239-240
© 1982 The American Genetic Association 73:239-240
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Resistance to papaya ringspot virus in Cucumis metuliferus and its relationship to resistance to watermelon mosaic virus 1
Department of Plant Pathology, New York State Agricultural Experiment Station, Cornell University Geneva. New York 14456
Abstract
In cross and backcross populations of Pi 292190an accession of Cucumis metuliferus (Naud.) Mey. resistant to papaya ringspot virus (PRVS)with a susceptible line (Acc. 2459) of the same species, resistance to thia virus was conferred by a single dominant gene. Clones of F2 and testcross plants inoculated with PRSV or watermelon mosaic virus 1 (WMV-1) reacted Identically, suggesting that the factor for resistance to PRSV is closely linked to Wmv, or may be the same factor. PRSV and WMV-1 are known to be closely related serologically. Acc. 2459 of C. , metuliferus (horned cucumber or jelly melon) is a valuable host for the propagation of isolates of PRSV.
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