The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. http://http://dspace.unitus.it:80 2013-05-25T21:05:08Z 2013-05-25T21:05:08Z De Pace, Ciro Del Puglia, Salvatore Ruggeri, Roberto Rossini, Francesco Vittori, Doriano http://hdl.handle.net/2067/2196 2011-10-13T09:18:47Z 2009-12-31T23:00:00Z

Title: New clones of Helianthus tuberosus enlarge options for the sustainable integration of bioenergy crops in current farming systems of central Italy Authors: De Pace, Ciro; Del Puglia, Salvatore; Ruggeri, Roberto; Rossini, Francesco; Vittori, Doriano Abstract: Among the few species eligible to become dedicated bioenergy crops, Helianthus tuberosus L. (Ht) may become an alternative to dismissed maize or sugar beet or grape cropping systems. The efficiency of Ht stalk and tuber biomass production depends, among other factors, on plant density and water resources supply. Ht clones expressing new structure for plant architecture and phenological phases were selected to explore a range of farm production environments in Central Italy, differing mainly for the air temperature and rainfall patterns. In those environments the new clones are suitable for high stalk-biomass and high tuber-biomass production to be transformed in biofuel.

2009-12-31T23:00:00Z Catarcione, Giulio Vittori, Doriano Ciaffi, Mario Rugini, Eddo De Pace, Ciro http://hdl.handle.net/2067/1727 2011-06-29T17:17:51Z 2008-12-31T23:00:00Z

Title: The ‘Evergrowing’ genotype of Corylus avellana is expressed in the offspring of ‘Tonda Gentile Romana’, ‘Nocchione’ and ‘Tonda di Giffoni’ Authors: Catarcione, Giulio; Vittori, Doriano; Ciaffi, Mario; Rugini, Eddo; De Pace, Ciro Abstract: The hazelnut (Corylus avellana L.) ‘evergrowing’ phenotype (EVG) fails both to cease growth and to enter dormancy under the dormancy-inducing (i.e., short days) conditions suitable for the wild type. The EVG phenotype is expressed by the homozygous genotype for the recessive allele EVG-d. Description: L'articolo é disponibile sul sito dell'editore: http://www.ishs.org

2008-12-31T23:00:00Z Caceres, Maria Eugenia Vaccino, Patrizia Corbellini, Maria Cionini, Pier Giorgio Sarri, Vania Polizzi, Enza Vittori, Doriano De Pace, Ciro http://hdl.handle.net/2067/1763 2011-06-29T17:23:09Z 2007-12-31T23:00:00Z

Title: Flowering earliness in wheat inbred breeding lines derived from T. aestivum ‘Chinese Spring’ x Dasypyrum villosum hybridization is not related to allelic variation at the vernalization loci VRN-A1, VRN-B1, and VRN-D1 Authors: Caceres, Maria Eugenia; Vaccino, Patrizia; Corbellini, Maria; Cionini, Pier Giorgio; Sarri, Vania; Polizzi, Enza; Vittori, Doriano; De Pace, Ciro Abstract: Substantial cryptic chromosome mutations or recombinations or gene mutations have occurred during the earlier generations following the hybridization T. aestivum “Chinese Spring” (CS) x Dasypyrum villosum event. Those genomic modifications were transmitted to the progeny plants, from which wheat introgression breeding lines (IBL) were derived. One of the mutations might have affected a flowering-promoting gene at a locus different from VRN-1, causing (under nonvernalizing condition and 13-14-hour daylength) the IBL “CSxV59” and the F1 hybrids “CSxV59 x cv Salgemma" and “CSxV59 x cv Isengrain” to start anthesis in less than 50 days from sowing compared to CS and to the two parental winter bread wheat cv Salgemma and cv Isengrain, which flowered about 150 days later.

2007-12-31T23:00:00Z Pasquini, Marina Bizzarri, Marco Nocente, Francesca Matere, Antonio Sereni, Loriana Casini, Fausto L'Aurora, Alessia Vaccino, Patrizia Corbellini, Maria Coppa, Tania Vittori, Doriano De Pace, Ciro http://hdl.handle.net/2067/2199 2011-10-13T23:05:32Z 2010-12-31T23:00:00Z

Title: Dasypyrum villosum come fonte di geni di resistenza a oidio e ruggine bruna per il miglioramento dei frumenti coltivati Authors: Pasquini, Marina; Bizzarri, Marco; Nocente, Francesca; Matere, Antonio; Sereni, Loriana; Casini, Fausto; L'Aurora, Alessia; Vaccino, Patrizia; Corbellini, Maria; Coppa, Tania; Vittori, Doriano; De Pace, Ciro Abstract: The wild species of cereals comprised in the secondary gene pool (GP 2)of wheat have received specific attention mainly with a view to widening the narrow genetic basis of cultivated wheats. Dasypyrum villosum Candargy (syn. Haynaldia villosa) (Dv) is an annual, diploid (2n=14), allogamous grass species, belonging to the GP 2 of wheat. This species, originating from Southern Europe and South-Western Asia, is widespread in the Mediterranean region and has been reported as carrying genes for enhancing agronomic and grain quality traits. A study has been carried out on two wheat aneuploid lines (CS V32 and CS V63) obtained after introgression of chromosome 6V # 4 into the T. aestivum cv. Chinese Spring (CS) nuclear genome by interspecific hybridization with a D. villosum population collected in Latium. The disomic addition line CS+6V carrying chromosome 6V#1 and bred by the late E.R. Sears, was also included in the study. The two aneuploid lines resulted completely resistant to Blumeria graminis f. sp. tritici (Bgt) at adult and seedling plant stage. The CS V63 line was crossed to the susceptible disomic addition line 6V # 1 and a suitable mapping population, segregating for powdery mildew resistance, was produced. The F2:3 progenies were studied both by phytopathological (with selected pathotypes of Bgt) and molecular (PCR marker) analyses in order to assess the genetic basis of resistance. The observed resistant: susceptible phenotypic ratio fitted the 3:1 ratio expected for the segregation of the resistance/susceptible alleles at one locus named “PmVt”, presumably located in 6VS. The resistant phenotype was dominant. Molecular analyses using the RAPD marker OPH171900 were carried out to confirm the location of this gene on 6VS and to verify its relationship with the Pm21 locus and association to the gliadin-encoding locus Gli-V2. The line CS V63 was tested also for resistance to Puccinia triticina (Pt): it resulted susceptible in the experiments carried out at the seedling stage with different selected Pt pathotypes. When tested with the same pathotypes in controlled infection at the adult plant stage, and in the field, in multilocation epidemiological trials, the line showed a complete or moderate resistance to this disease, thus indicating the possible presence in 6V # 4 of gene(s) for adult plant resistance to Pt.

2010-12-31T23:00:00Z