VIEW ARTICLE

Inheritance of Beet Mosaic Virus Resistance in Sugarbeet. R. T. Lewellen, Research Geneticist, ARS, USDA, U.S. Agricultural Research Station, Salinas, California 93901; Phytopathology 63:877-881. Accepted for publication 18 January 1973. DOI: 10.1094/Phyto-63-877.

An annual line of sugarbeet (Beta vulgaris) was shown to be a source of beet mosaic virus (BMV) resistance. Inheritance studies indicated that one incompletely dominant gene, Bm, conditioned resistance. Local lesion counts on Chenopodium amaranticolor from BMV-infected sugarbeet sources showed that the concentration of virus was reduced by the Bm gene and that the heterozygous F₁ was intermediate in concentration. Bm was specific against all isolates of BMV tested, but appeared to have no modifying effect on systemic infection by other beet viruses.