DOMINANT INHERITANCE OF DOWNY MILDEW RESISTANCE IN MELONS

The inheritance of resistance to downy mildew was studied in crosses of the resistant line 5-4-2-1 with the susceptible male sterile lines VK1–5 and K15-6. When the resistant line 5-4-2-1 was crossed with the susceptible VK1–5, in whose pedigree genes for resistance are lacking, the inheritance was recessive.
When the resistant 5-4-2-1 was crossed with the susceptible K15-6, in whose pedigree there are genes for resistance, the inheritance was dominant.
Apparently, a gene present in K15-6 is the influential factor determining the dominant type of inheritance of downy mildew resistance in melons.

VII Eucarpia Meeting on Cucurbit Genetics and Breeding

D. Angelov, L. Krasteva

Cucumis melo, disease resistance, dominance, Pseudoperonospora cubensis

https://doi.org/10.17660/ActaHortic.2000.510.45