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2008 - 481 p.

Mapping candidate genes for drought tolerance in barley

Tondelli A., Francia E., Laidò G., Barabaschi D., Visioni A., Stanca A.M., Pecchioni N.

Barley is an important diploid model for the Triticeae. In order to study in an unique genetic system drought and cold stresses a new genetic map based on the Nure x Tremois (NT) doubled-haploid population has been developed. The winter parent Nure -Italian two-rowed feed-barley cultivar- has a wide range of adaptability, including South European environments. The spring parent Tremois -French two-rowed malting variety- is adapted to fertile environments. Besides the NT population, two other well characterized barley segregating populations (i.e. Steptoe x Morex, and Proctor x Nudinka) have been used to map candidate genes (CGs) involved in the response to abiotic stresses. Linkage analysis in the individual mapping populations was performed with the software MAPMAKER 3.0 by adding the markers to the available NxT, PxN and SxM linkage maps. The consensus map including mostly transcription factors was then constructed by using the software JoinMap 2.0. The final marker order was compared with the order of each constituent map, and as main reference, with the barley BIN map.

Mots-clés    

CARTE GENETIQUE, HORDEUM, ORGE, RESISTANCE A LA SECHERESSE

Citer cet article    

Tondelli A., Francia E., Laidò G., Barabaschi D., Visioni A., Stanca A.M., Pecchioni N. Mapping candidate genes for drought tolerance in barley. In : Molina-Cano J.L. (ed.), Christou P. (ed.), Graner A. (ed.), Hammer K. (ed.), Jouve N. (ed.), Keller B. (ed.), Lasa J.M. (ed.), Powell W. (ed.), Royo C. (ed.), Shewry P. (ed.), Stanca A.M. (ed.). Cereal science and technology for feeding ten billion people: genomics era and beyond. Zaragoza : CIHEAM / IRTA, 2008. p. 235-237. (Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 81). Meeting of the Eucarpia Cereal Section, 2006/11/13-17, Lleida (Spain). http://om.ciheam.org/om/pdf/a81/00800849.pdf