The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. http://http://dspace.unitus.it:80 2013-05-19T15:11:07Z 2013-05-19T15:11:07Z Gennaro, Andrea Forte, Paola Carozza, Roberta Savo Sardaro, Luisa Maria Ferri, Daniela Bitti, Alessandra Borrelli, Grazia Maria D'Egidio, Maria Grazia Ceoloni, Carla http://hdl.handle.net/2067/1836 2011-06-30T15:04:48Z 2006-12-31T23:00:00Z

Title: Pyramiding different alien chromosome segments in durum wheat: feasibility and breeding potential Authors: Gennaro, Andrea; Forte, Paola; Carozza, Roberta; Savo Sardaro, Luisa Maria; Ferri, Daniela; Bitti, Alessandra; Borrelli, Grazia Maria; D'Egidio, Maria Grazia; Ceoloni, Carla Abstract: Wheat chromosome engineering, i.e. the transfer of alien chromosome segments from various Triticeae species into cultivated wheats, is greatly benefiting from the recent advancements in molecular genetics, cytogenetics and genomics. Powerful tools are currently available that make selection of desired genotypes far more precise and effective than in the past, thus giving this transfer strategy considerable potential for meaningful practical achievements. The paper describes the pyramiding of various disease resistance and quality-related genes, originating from different alien species, into durum wheat. Description: L'articolo é disponibile sul sito dell'editore: http://www.sciencefromisrael.com

2006-12-31T23:00:00Z Grossi, Rosaria Gennaro, Andrea Forte, Paola Bitti, Alessandra Ceoloni, Carla http://hdl.handle.net/2067/1837 2011-06-30T15:47:30Z 2008-12-31T23:00:00Z

Title: Segregation distortion following introgression of Thinopyrum ponticum into durum wheat. Authors: Grossi, Rosaria; Gennaro, Andrea; Forte, Paola; Bitti, Alessandra; Ceoloni, Carla Abstract: Segregation distortion (SD) has been observed in a wide variety of organisms, including fungi, plants, insects, and mammals. In plants, genomic regions harboring markers with abnormal segregation ratios have been reported in many crop species, including barley, pearl millet, tomato, rice, maize and wheat. Chromosomes carrying Sd genes have been also identified in several wild wheat relatives and their effect revealed upon hybridization with wheat. The case-study of this research concerns one or more Sd genes present on the long arm of 7Ag (7AgL) chromosome of the wild wheatgrass species Thinopyrum ponticum, which, once transferred in association with desirable genes into wheat chromosomes, negatively affect their segregation and also alter some phenotypic plant traits.

2008-12-31T23:00:00Z Gennaro, Andrea Kuzmanović, Ljiljana Forte, Paola Lattanzi, Gionata Grossi, Rosaria Bitti, Alessandra Giorgi, Debora Ceoloni, Carla http://hdl.handle.net/2067/1778 2011-07-22T08:56:37Z 2009-12-31T23:00:00Z

Title: Genetic and cytogenetic maps of durum wheat-Thinopyrum ponticum recombinant chromosomes: a tool to finely describe Triticeae 7L arms and to target alien traits. Authors: Gennaro, Andrea; Kuzmanović, Ljiljana; Forte, Paola; Lattanzi, Gionata; Grossi, Rosaria; Bitti, Alessandra; Giorgi, Debora; Ceoloni, Carla Abstract: As one important result of wheat chromosome engineering, creation of arrays of wheat-alien recombinant chromosomes allows assignment of markers and genes to defined physical locations, hence improving knowledge of structural-functional organization of wheat and alien chromosomal regions. In this research we have exploited several durum wheat-Thinopyrum ponticum recombinant lines carrying relevant genes for wheat improvement.

2009-12-31T23:00:00Z Gennaro, Andrea Forte, Paola Lattanzi, Gionata Ferri, Daniela Carozza, Roberta D'Egidio, Maria Grazia Lafiandra, Domenico Ceoloni, Carla http://hdl.handle.net/2067/1855 2011-07-20T13:16:37Z 2008-12-31T23:00:00Z

Title: Cytogenetic and molecular characterization of durum wheat chromosome transfers with 1D-associated gluten protein genes and their pyramiding Authors: Gennaro, Andrea; Forte, Paola; Lattanzi, Gionata; Ferri, Daniela; Carozza, Roberta; D'Egidio, Maria Grazia; Lafiandra, Domenico; Ceoloni, Carla Abstract: Gluten quality of bread wheat is known to be mainly associated with high- (HMW-GS) and low-(LMW-GS) molecular weight glutenin subunits encoded by Glu-1 (L arm of group-1 chromosomes) and Glu-3 (S arm of group-1 chromosomes) genes, respectively, with the 1D alleles of such genes having the major impact on bread making properties. Transfer of chromosomal segments containing the Glu-D1 and Gli-D1/Glu-D3 loci was successfully achieved in a number of instances resorting to chromosome engineering. Using this strategy, we isolated two 1A-1D recombinant lines, in which the Gli-D1/Glu-D3 genes and the Glu-D1d allele (HMW-GS "5+10") were separately transferred into the 1AS and 1AL arm, respectively, of recipient durum wheat lines (named PS and PL, respectively). Also, a detailed genetic map of both recombinant chromosome arms was developed. Stable PS + PL double-recombinant lines have been obtained as a result of homologous recombination in the 1A portions shared by the two recombinant chromosomes present in PS x PL hybrids. Preliminary quality tests suggest that the Glu-D3 + Glu-D1d combined presence could determine a slight increase of gluten quality parameters over those associated with Glu-D1d alone.

2008-12-31T23:00:00Z