Globe artichoke is a vegetable native to the Mediterranean basin. Its commercial production is mainly based on perennial cultivation of vegetatively propagated clones, which are highly heterozygous and segregate widely when progeny-tested. The aim of this study was to measure genetic variation using random amplified polymorphic DNA (RAPD) in five populations of 'Spinoso sardo', the must widely grown and economically important cultivar in Sardinia (Italy). Analysis ol molecular variance (AMOVA) gave highly significant differences between populations (28.1% of the total genetic diversity); substantial within-population variation was detected (71.8% of total genetic: diversity). The RAPD results show the need to apply clonal selection to narrow the broad genetic variability within the cultivar and to address important questions on the most suitable strategies for germplasm preservation.
RAPD variation within and amog populations of globe artichoke cultivar "Spinoso sardo" / Lanteri, S; Di Leo, I; Ledda, Luigi; Mameli, M. G.; Portis, E.. - In: PLANT BREEDING. - ISSN 0179-9541. - 120:(2001), pp. 243-246. [10.1046/j.1439-0523.2001.00605.x]