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Title: Segregation distortion following introgression of Thinopyrum ponticum into durum wheat.
Authors: Grossi, Rosaria
Gennaro, Andrea
Forte, Paola
Bitti, Alessandra
Ceoloni, Carla
Keywords: Wheat-alien introgression;Gametophytic competition;Gametocidal genes;Male germline;Competizione gametofitica;Geni gametocidici;Linea germinale maschile
Issue Date: 2009
Publisher: Italian Society of Agricultural Genetics
Source: Grossi M.R. et al. 2009. Segregation distortion following introgression of Thinopyrum ponticum into durum wheat. In: Proceedings of the 53rd Italian Society of Agricultural Genetics Annual Congress. (Torino, Italy 16th-19th September 2009)
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.
ISSN: 978-88-900622-9-2
Appears in Collections:DABAC - Archivio della produzione scientifica

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