Genetic diversity in apricot cultivars based on AFLP markers

• Published in: Euphytica Vol. 127; no. 2; pp. 297 - 301
• Main Authors: HURTADO, M. A, WESTMAN, A, BECK, E, ABBOTT, G. A, LLACER, G, BADENES, M. L
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer 01.01.2002; Springer Nature B.V
• Subjects: Agronomy. Soil science and plant productions; Amplified fragment length polymorphism; Apricots; Biological and medical sciences; Crop diseases; Cultivars; Fundamental and applied biological sciences. Psychology; Genetic crosses; Genetic diversity; Genetics and breeding of economic plants; Heterozygosity; Markers; Pest resistance; Plant breeding; Plant pathogens; Potyvirus; Progeny; Prunus armeniaca; Varietal selection. Specialized plant breeding, plant breeding aims; Southern Europe; Europe; Spain; Genetic variability; Genetic marker; Plant pathogen; Rosaceae; Marker assisted selection; Heterozygosity; Virus; Microorganism resistance; Sensitivity resistance; Plum pox virus; Dicotyledones; Genetic improvement; Angiospermae; Prunus armeniaca; Spermatophyta; Fruit tree; Potyvirus; Amplified fragment length polymorphism marker; Potyviridae; Cultivar
• ISSN: 0014-2336; 1573-5060
• DOI: 10.1023/A:1020206601328

A set of cultivars used as genitors in apricot breeding programs aimed at introducing sharka resistance were examined by AFLP molecular marker analysis. The markers obtained indicated that apricot cultivars resistant to sharka were related to the European cultivars, but they potentially share a common ancestor donor of sharka outside of the European group. Segregation of AFLP and RAPD markers has been tested in two progenies of two crosses, one between a resistant and a susceptible cultivar and one between two susceptible accessions. The heterozygozity of families obtained from crosses between resistant and susceptible cultivars is similar to those obtained from other self-incompatible Prunus species. On the other hand, heterozygosity of a progeny obtained from a cross between European susceptible cultivars was very low. The usefulness of the information provided by AFLPs for apricot breeding programs is discussed.