| Autor: |
Yuste‐Lisbona, F. J., López‐Sesé, A. I., Gómez‐Guillamón, M. L. |
| Předmět: |
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| Zdroj: |
Plant Breeding; Feb2010, Vol. 129 Issue 1, p72-75, 4p, 1 Color Photograph, 2 Charts |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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