ISHS Acta Horticulturae 657: XIX International Symposium on Virus and Virus-like Diseases of Temperate Fruit Crops - Fruit Tree Diseases
RESISTANCE TO PLUM POX VIRUS: A MOLECULAR APPROACH |
| Authors: | S. Vilanova, C. Romero, J.M. Soriano, J. Martínez-Calvo, G. Llácer, M.L. Badenes, J.D. Abernathy, A.G. Abbott |
| Keywords: | Prunus armeniaca, apricot, sharka, linkage map, microsatellites, resistance gene analogs |
| Abstract:
In order to study the inheritance of resistance to PPV (Plum pox virus) in apricot, two populations of 76 individuals derived from a self-pollination of cultivar ‘Lito’ and of 81 from a cross between ‘Goldrich’ and ‘Currot’ were screened for the trait. ‘Lito’ is a Greek cultivar resistant to PPV, ‘Goldrich’ is a North American cultivar resistant to PPV and ‘Currot’ is a susceptible native Spanish cultivar. Several approaches have been initiated aimed at clarifying the genetic of PPV resistance: the development of new SSR markers in the map region where PPV resistance trait is located in the linkage maps from both families, and the development of apricot RGAs (resistance gene analogs). Sixteen SSR sequences where found in the linkage group 1 and 5 RGAs were identified. | |
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