http://http://dspace.unitus.it:80 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. Thu, 20 Jun 2013 01:58:50 GMT 2013-06-20T01:58:50Z http://hdl.handle.net/2067/1837 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. Wed, 31 Dec 2008 23:00:00 GMT http://hdl.handle.net/2067/1837 2008-12-31T23:00:00Z http://hdl.handle.net/2067/1778 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. Thu, 31 Dec 2009 23:00:00 GMT http://hdl.handle.net/2067/1778 2009-12-31T23:00:00Z http://hdl.handle.net/2067/1854 Title: Durum wheat-Thinopyrum ponticum recombinant lines: a tool to finely describe homoeologous 7L arm regions. Authors: Gennaro, Andrea; Kuzmanović, Ljiljana; Giorgi, Debora; Grossi, Rosaria; Bitti, Alessandra; Quarrie, Steve A.; 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 and to identify suitable markers for MAS of target genes. Regions involved in our research are the distal portions of wheat 7AL and Thinopyrum ponticum (tall wheatgrass, a wild wheat relative) 7AgL arms, the latter containing several genes of value for wheat improvement. Thu, 31 Dec 2009 23:00:00 GMT http://hdl.handle.net/2067/1854 2009-12-31T23:00:00Z