title: Secondary metabolite profile in induced tetraploids of wild Solanum commersonii Dun.
abstract: The main aim of this work was to study the leaf secondary metabolite profiles of artificially induced tetraploids (2n=4x=48) of Solanum commersonii, a diploid (2n=2x=24) wild potato species. The tetraploid genotypes of S. commersonii were produced by oryzalin treatment. Both HPLC-UV and LC/MS analyses revealed that there were no qualitative differences in the metabolite profiles between the diploid S. commersonii and its tetraploids. By contrast, the results showed that the phenylpropanoid content was generally significantly higher in the tetraploids than in the diploid S. commersonii. Concerning the glycoalkaloids (GAs), the results provided evidence that the content of minor GAs (solanidenediol triose, solanidadienol lycotetraose, and solanidenol lycotetraose) was higher in tetraploids than in the diploid progenitor, while the content of major GAs (dehydrodemissine and dehydrocommersonine) was significantly higher in diploid S. commersonii than in its tetraploid genotypes. The results are discussed from the practical perspective of potato biodiversity enhancement.
authors.affiliation: Department of Soil, Plant, Environmental, and Animal Production Sciences (DISSPAPA), University of Naples Federico II, Portici (Na), Italy.
authors.forename: Immacolata
authors.initials: I
authors.lastname: Caruso
authors.forename: Laura
authors.initials: L
authors.lastname: Lepore
authors.forename: Nunziatina
authors.initials: N
authors.lastname: De Tommasi
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Dal Piaz
authors.forename: Luigi
authors.initials: L
authors.lastname: Frusciante
authors.forename: Riccardo
authors.initials: R
authors.lastname: Aversano
authors.forename: Raffaele
authors.initials: R
authors.lastname: Garramone
authors.forename: Domenico
authors.initials: D
authors.lastname: Carputo
mesh_terms: D000146:Acids, Carbocyclic / Q000737:chemistry / Q000378:metabolism; D004136:Dinitrobenzenes / Q000494:pharmacology; D005838:Genotype; D009844:Oligosaccharides / Q000737:chemistry / Q000378:metabolism; D018515:Plant Leaves / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D012991:Solanaceous Alkaloids / Q000737:chemistry / Q000378:metabolism; D032322:Solanum / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D013424:Sulfanilamides / Q000494:pharmacology; D057891:Tetraploidy
chemical_list: D000146:Acids, Carbocyclic; D004136:Dinitrobenzenes; D009844:Oligosaccharides; D012991:Solanaceous Alkaloids; D013424:Sulfanilamides; C012465:oryzalin