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  • Multivariate analysis of variation in the field of tetraploid and (hypo)-hexaploid Solanum commersonii (+) S. tuberosum somatic hybrids.

    Author(s) : Cardi, T.Mazzei, M.Frusciante, L.

    Author Affiliation : CNR-IMOF, Istituto per il Miglioramento Genetico delle Piante da Orto e da Fiore, Via Università 133, 80055 Portici (NA), Italy.

    Journal article : Italian Journal of Agronomy 2000 Vol.4 No.2 pp.67-74 ref.37

    Abstract : A sample of tetraploid and (hypo)-hexaploid hybrid clones between dihaploid Solanum tuberosumsolanum tuberosumSubject Category: Organism Names
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    (2n=2x=24) and the diploid wild species S. commersonii (2n=2x=24) were scored for many epigeous and hypogeous traitstraitsSubject Category: Properties
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    . Some hybridshybridsSubject Category: Organism Groups
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    had better productive traits than both parents. Hybrids also showed heterotic vigourvigourSubject Category: Properties
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    vigourSubject Category: Properties
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    for plant growthgrowthSubject Category: Natural Processes
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    , which generally resembled the cultivated phenotype. In general, tetraploid hybrids were more vigorous than hexaploid ones, and showed better floweringfloweringSubject Category: Natural Processes
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    . Some variation was observed among hexaploids. Variability for 12 epigeous traits could be summarized by 5-6 canonical variables, which were correlated primarily to reproductive traits (colourcolourSubject Category: Properties
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    colourSubject Category: Properties
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    and shapeshapeSubject Category: Properties
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    of flower, degree of flowering), and, secondarily, to vegetative traits (degree of pubescence, number and size of leaflets). Four significant canonical variables, which were correlated to the length of stolonsstolonsSubject Category: Anatomical and Morphological Structures
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    and the number and weight of tuberstubersSubject Category: Anatomical and Morphological Structures
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    , were obtained by the discriminant analysis with 4 hypogeous traits.

    ISSN : 1125-4718

    Record Number : 20013100317

    Publisher : Forum Società Editrice Universitaria Udinese srl

    Location of publication : Udine

    Country of publication : Italy

    Language of text : English

    Language of summary : Italian

    Indexing terms for this abstract:

    Organism descriptor(s) : Solanum commersoniisolanum commersoniiSubject Category: Organism Names
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    , Solanum tuberosumsolanum tuberosumSubject Category: Organism Names
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    Descriptor(s) : canonical correlationcanonical correlationSubject Category: Properties
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    , colourcolourSubject Category: Properties
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    , crossescrossesSubject Category: Miscellaneous
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    , floweringfloweringSubject Category: Natural Processes
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    , flowersflowersSubject Category: Anatomical and Morphological Structures
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    , genetic variationgenetic variationSubject Category: Properties
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    , growthgrowthSubject Category: Natural Processes
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    , heterosisheterosisSubject Category: Properties
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    , hexaploidyhexaploidySubject Category: Properties
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    , hybridshybridsSubject Category: Organism Groups
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    , potatoespotatoesSubject Category: Commodities and Products
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    , shapeshapeSubject Category: Properties
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    , stolonsstolonsSubject Category: Anatomical and Morphological Structures
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    , tetraploidytetraploidySubject Category: Properties
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    , traitstraitsSubject Category: Properties
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    , tuberstubersSubject Category: Anatomical and Morphological Structures
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    , vigourvigourSubject Category: Properties
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    , wild relativeswild relativesSubject Category: Organism Groups
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    Identifier(s) : anthesis, colorcolorSubject Category: Properties
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    , genetic variability, genotypic variability, genotypic variation, hybrid vigor, hybrid vigour, outbreeding enhancement, tetraploids, vigorvigorSubject Category: Properties
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    Broader term(s) : SolanumsolanumSubject Category: Organism Names
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    , SolanaceaesolanaceaeSubject Category: Organism Names
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    , SolanalessolanalesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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