The Journal of Heredity 1988:79(1):45-47
© 1988 The American Genetic Association 79:45-47
research-article |
Inheritance of Resistance to a Lentil Strain of Pea Seed-Borne Mosaic Virus in Pisum sativum
Department of Plant Pathology, New York State Agricultural Experiment Station, Cornell University Geneva, New York
Germplasm Resources, Northeast Regional Plant Introduction Station USDA ARS, Geneva, New York
Address reprint requests to Dr. Provvidenti, Department of Plant Pathology, New York State Agricultural Experiment Station, Cornell University, Geneva, NY 14456.
Abstract
In Pisum sativum, two independently inherited single recessive genes were found to confer resistance to the same pathotype of pea seed-borne mosaic virus from lentil (PSbMV-L1). The gene sbm-2, present in the domestic cultivar Bonneville, was determined to be closely linked to mo, which conditions resistance to bean yellow mosaic virus and watermelon mosaic virus 2 and is known to be located in Pisum linkage group 2. The second gene, sbm-3, was found in PI 347492, a bean yellow mosaic virus-susceptible line from India, and apparently is located in a different linkage group. Both genes, independently of each other, confer resistance to PSbMV-L1, but whether they are repetitive entities remains to be determined.
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