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Thesis

Spanish

ID: <

http://hdl.handle.net/10251/6362

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DOI: <

10.4995/thesis/10251/6362

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Where these data come from
Analysis of variability in natural populations of Solanum, sections Lycopersicon and Basarthrum

Abstract

In the Germoplasma Bank of the Institute for Conservation and Improvement of Agrodiversity of Valencia’s Polytechnic University of Valencia (CoMAv), there are currently more than 7000 entries of horticultural species, including local Spanish cultivars and wild species. These entries include 3500 Lycopersicon and 144 Basarthrum section Solanum. Efficient use of these plant genetic resources requires knowledge of their genetic structure and taxonomy. Knowledge of the distribution of existing variability makes it possible to establish more rational conservation criteria and a more efficient use of these resources for the improvement of cultivated species. The objectives of this doctoral thesis focus on the above-mentioned sections of the Solanum genus. Both sections include cultivated species: tomatoes and sweet cucumbers. The classification and phyllogenia of the species belonging to each of these sections has been controversial for a long time and, despite the effort made so far, no final consensus has yet been reached. This may be due to a recent separation of these species, which remain closely related and intersecting, or due to a lack of work including appropriate representation of all variability present in these sections. To analyse the taxonomy of the Lycopersicon section, a broad representation of material from each species has been used, covering their full range of distribution. The analyses carried out identify 12 different species. This classification confirms some of the new species proposed in the recent section, but not in all cases. The new species S. huaylasense is clearly separated from S. peruvianum. Zuriaga García, E. (2009). Analysis of variability in natural populations of Solanum, sections Lycopersicon and Basarthrum [Tesis doctoral not published]. Universitat Politèca de València. https://doi.org/10.4995/Thesis/10251/6362

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