Morphology and SSR fingerprinting of newly developed <Emphasis Type="Italic">Cynara cardunculus</Emphasis> genotypes exploitable as ornamentals |
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| Authors: | Sergio Lanteri Ezio Portis Alberto Acquadro Rosario P Mauro Giovanni Mauromicale |
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| Institution: | (1) Di.Va.P.R.A. Plant Genetics and Breeding, University of Torino, via L. da Vinci 44, 10095 Grugliasco (Torino), Italy;(2) Dipartimento di Scienze Agronomiche, Agrochimiche e delle Produzioni Animali—sez. Scienze Agronomiche, University of Catania, via Valdisavoia 5, 95123 Cantania, Italy; |
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| Abstract: | The species Cynara cardunculus includes the globe artichoke (var. scolymus), the cultivated cardoon (var. altilis) and the wild cardoon (var. sylvestris). The three taxa are sexually compatible and originate fertile F
1 progenies, which, given the high heterozygosity of the species, are highly segregating. We report the characterization of
two F
1 populations, one bred from a cross between globe artichoke and cultivated cardoon, and the other between globe artichoke
and wild cardoon. Both populations featured a wide array of phenotypes in relation to several traits, and some of the newly
developed genotypes are of interest for the ornamental market. The two populations were genotyped at 50 microsatellite (SSR)
loci: in the globe artichoke × wild cardoon and globe artichoke × cultivated cardoon progenies 116 and 97 alleles were respectively
detected. SSR pattern scores were used to produce an UPGMA dendrogram and a PCoA plot. A set of nine SSR loci, evenly dispersed
across the genome, was shown to be sufficient to unambiguously identify each segregant. The molecular fingerprinting is useful
for establishing the true to type correspondence of propagative materials in nurseries and ensures the effective correspondence
between the real and the declared identity of a clone. |
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