ISHS Acta Horticulturae 538: Eucarpia symposium on Fruit Breeding and Genetics
MARKER ASSISTED SELECTION FOR PEST AND DISEASE RESISTANCE IN THE NEW ZEALAND APPLE BREEDING PROGRAMME |
| Authors: | V. Bus, C. Ranatunga, S. Gardiner, H. Bssett, E. Rikkerink |
| Keywords: | apple scab, powdery mildew, woolly apple aphid, SCAR markers |
| DOI: | 10.17660/ActaHortic.2000.538.95 |
| Abstract:
Breeding new cultivars with multiple, durable resistances based on gene pyramiding is a main objective of the HortResearch apple breeding programme. This is a progress report on the development of genetic markers for woolly apple aphid (WAA), powdery mildew (PM), and apple scab (AS) resistance genes and the evaluation of their performance in marker assisted selection (MAS). Markers were identified for previously identified (Er1, Pl2, and Vm), as well as newly named (Er3, Vh2, and Vh4) genes. MAS was applied with variable success as some markers initially appeared to differ in their transportability to lines of different genetic background. The implications of applying MAS in apple breeding for pyramiding of pest and disease resistance genes are discussed. | |
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