RAPD variation within and among populations of globe artichoke cultivar 'Spinoso sardo' |
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| Authors: | S Lanteri I di Leo L Ledda M G Mameli E Portis |
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| Institution: | Dipartimento di Scienze Agronomiche e Genetica Vegetale Agraria, Universitàdegli Studi di Sassari, via E. De Nicola, I—07100 Sassari, Italy. E-mail:;DI. VA.P.R.A. settore Genetica Agraria, Universitádegli Studi di Torino, via L. Da Vinci 44, I-10095 Grugliasco (Turin), Italy |
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| Abstract: | 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 most widely grown and economically important cultivar in Sardinia (Italy). Analysis of 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. |
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| Keywords: | Cynara scolymus 'Spinoso sardo' genetic variability RAPD |
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