Chromosome number of theOxalis tuberosa alliance (Oxalidaceae) |
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| Authors: | Daniel de Azkue Arturo Martínez |
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| Institution: | (1) Centro de Estudios Farmacológicos y de Principios Naturales (CEFAPRIN) Serrano 665, 1414 Buenos Aires, Argentina |
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| Abstract: | Twelve taxa of theOxalis tuberosa alliance were analysed and found to share the same basic chromosome number x = 8. The karyotypes are composed by small metacentric and submetacentric chromosomes. Different ploidy levels were found among the taxa: there were 9 diploids, 1 tetraploid, 1 hexaploid and 1 octoploid. The last ploidy level corresponds toO. tuberosa, the only tuber bearing taxon found so far in the alliance. Cytotaxonomic evidence and evolutionary considerations suggest to classify theO. tuberosa alliance in sect.Herrerea. |
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| Keywords: | Angiosperms Oxalidaceae Oxalis tuberosa alliance Chromosome numbers karyotype analyses cytotaxonomy |
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