http://http://dspace.unitus.it:80 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. 2013-05-21T09:38:56Z http://hdl.handle.net/2067/1537 Title: Cytological and molecular characterization of Vicia esdraelonensis Warb. & Eig: a rare taxon Authors: Ruffini Castiglione, Monica; Frediani, Manuela; Gelati, Maria Teresa; Ravalli, Concetta; Venora, Gianfranco; Caputo, Paolo; Cremonini, Roberto Description: L'articolo è disponibile sul sito dell'editore: http://www.springerlink.com 2006-12-31T23:00:00Z http://hdl.handle.net/2067/1540 Title: Cytological characterization of Vicia oroboides Wulfen in Jacq Authors: Ruffini Castiglione, Monica; Frediani, Manuela; Ravalli, Concetta; Venora, Gianfranco; Cremonini, Roberto Description: L'articolo è disponibile sul sito dell'editore: http://www.springerlink.com 2008-12-31T23:00:00Z http://hdl.handle.net/2067/1541 Title: Cytology of Vicia species. X. Karyotype evolution and phylogenetic implication in Vicia species of the sections Atossa, Microcarinae, Wiggersia and Vicia Authors: Ruffini Castiglione, Monica; Frediani, Manuela; Gelati, Maria Teresa; Ravalli, Concetta; Venora, Gianfranco; Caputo, Paolo; Cremonini, Roberto Abstract: Automated karyotype analyses and sequence of rDNA spacers have been analysed for the species belonging to sections Atossa, Microcarinae, Wiggersia and Vicia. Karyomorphological parameters, based on Rec, Syi and TF % indices, have been determined and evidenced that, in term of symmetry, the karyotype of Vicia lathyroides was the most asymmetric one. A multivariate analysis using 34 karyological parameters, in addition to the symmetry indices, has been carried out and the corresponding dendrogram of linkage distances showed six different groups. Molecular investigations on the inclusive group in study by employing ITS DNA sequences indicated a different pattern of relationships. The cladistic analysis combining the molecular data set with karyological parameters evidenced that the species of sections Vicia and Atossa join closely to each other in a paraphyletic group, which includes the monophyletic section Wiggersia. Therefore, our karyological and molecular data provide information about the phylogenetic position of the analysed species inside the subgenus Vicia and are discussed in relation to previous results obtained by morphology, isozymes and ribosomal genes analyses. Description: L'articolo è disponibile sul sito dell'editore: http://www.springerlink.com 2009-12-31T23:00:00Z http://hdl.handle.net/2067/1553 Title: Karyomorphological data as phylogenetic markers in the study of Vicia subgenus Authors: Venora, Gianfranco; Ravalli, Concetta; Ruffini Castiglione, Monica; Cremonini, Roberto; Frediani, Manuela 2008-12-31T23:00:00Z http://hdl.handle.net/2067/1558 Title: Nuclear DNA contents, rDNAs and karyotype evolution in subgenus Vicia. III. The heterogeneous section Hypechusa Authors: Caputo, Paolo; Frediani, Manuela; Venora, Gianfranco; Ravalli, Concetta; Ambrosio, Maria; Cremonini, Roberto Abstract: Nuclear DNA contents, automated karyotype analyses, and sequences of internal transcribed spacers from ribosomal genes have been determined in the species belonging to section Hypechusa of the subgenus Vicia. Karyomorphological results and phylogenetic data generated from the comparison of rDNA (genes coding for rRNA) sequences showed that sect. Hypechusa is not monophyletic; however, some monophyletic units are apparent (one including Vicia galeata, V. hyrcanica, V. noeana, and V. tigridis, another including V. assyriaca, V. hybrida, V. melanops, V. mollis, and V. sericocarpa), which partly correspond to morphology-based infrasectional groups. The relationships among these species and the species in sections Faba, Narbonensis, Bithynicae, and Peregrinae have been also investigated. Description: L'articolo è disponibile sul sito dell'editore: http://www.springerlink.com 2005-12-31T23:00:00Z