Abstract
The genetics of specific resistance was studied in F2 populations which segregated for either one or two resistance genes. The resistance factors 1, 11 and 14 which had not previously been characterized genetically segregated as single dominant genes (Dm). Resistance was determined by three linkage groups; R 1/14, 2, 3, and 6 in the first, R 5/8, and 10 in the second and R 4, 7 and 11 in the third. Cultivars of lettuce commonly used in the differential series to detect virulence to R3 and R10, were demonstrated to carry two tightly linked resistance genes. Implications of this linkage arrangement to the manipulation and characterization of these resistance genes are discussed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 520-528 |
| Number of pages | 9 |
| Journal | Theoretical And Applied Genetics |
| Volume | 70 |
| Issue number | 5 |
| DOIs | |
| State | Published - Aug 1985 |
Keywords
- Host/parasite interaction
- Specific resistance
ASJC Scopus subject areas
- Genetics(clinical)
- Genetics
- Plant Science
- Horticulture
- Agronomy and Crop Science
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Hulbert, S. H., & Michelmore, R. W. (1985). Linkage analysis of genes for resistance to downy mildew (Bremia lactucae) in lettuce (Lactuca sativa). Theoretical And Applied Genetics, 70(5), 520-528. https://doi.org/10.1007/BF00305985