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Secondary Metabolite Profile in Induced Tetraploids of Wild Solanum commersonii Dun .
Author(s) -
Caruso Immacolata,
Lepore Laura,
De Tommasi Nunziatina,
Dal Piaz Fabrizio,
Frusciante Luigi,
Aversano Riccardo,
Garramone Raffaele,
Carputo Domenico
Publication year - 2011
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.201100038
Subject(s) - ploidy , metabolite , secondary metabolite , botany , solanum , oryzalin , chemistry , biology , horticulture , gene , biochemistry , genetics , microtubule
The main aim of this work was to study the leaf secondary metabolite profiles of artificially induced tetraploids (2 n =4 x =48) of Solanum commersonii , a diploid (2 n =2 x =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.