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- Title
Inheritance of resistance to races 1, 2 and 5 of powdery mildew in the melon TGR-1551.
- Authors
Yuste‐Lisbona, F. J.; López‐Sesé, A. I.; Gómez‐Guillamón, M. L.
- Abstract
With 1 figure and 2 tables The inheritance of resistance to races 1, 2 and 5 of Podosphaera xanthii in the melon TGR-1551 was studied in a cross with the susceptible cultivar ‘Bola de oro’. Under artificial inoculation conditions, four phenotypic classes were defined according to the level of fungal sporulation. The segregation ratios for resistance/susceptibility observed in the different populations and the results of the progeny test indicated that resistance to races 1, 2 and 5 of P. xanthii in TGR-1551 was governed by two independent genes, one dominant and one recessive, which means that the genetic control is a dominant–recessive epistasis. This is the first time that a recessive gene that confers resistance to more than one race of powdery mildew has been identified in melon. TGR-1551 could be considered a good genetic source for the development of powdery mildew resistant breeding lines.
- Subjects
PODOSPHAERA; ERYSIPHACEAE; DISEASE resistance of plants; MELONS; POWDERY mildew diseases
- Publication
Plant Breeding, 2010, Vol 129, Issue 1, p72
- ISSN
0179-9541
- Publication type
Article
- DOI
10.1111/j.1439-0523.2009.01655.x