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Article Dans Une Revue Molecular Breeding Année : 2009

Mapping and diagnostic marker development for soil-borne cereal mosaic virus resistance in bread wheat

Résumé

Monogenically-inherited resistance to Soil-borne cereal mosaic virus (SBCMV) in hexaploid bread wheat cultivars 'Tremie' and 'Claire' was mapped on chromosome 5D. The two closest flanking markers identified in the Claire-derived mapping population, Xgwm469-5D and E37M49, are linked to the resistance locus at distances of 1 and 9 cm, respectively. Xgwm469-5D co-segregated with the SBCMV resistance in the Tremie-derived population and with the recently identified Sbm1 locus in the cv. Cadenza. This suggested that Tremie and Claire carry a resistance gene allelic to Sbm1, or one closely linked to it. The diagnostic value of Xgwm469-5D was assessed using a collection of SBCMV resistant and susceptible cultivars. Importantly, all susceptible genotypes carried a null allele of Xgwm469-5D, whereas resistant genotypes presumably related to either Claire and Tremie or Cadenza revealed a 152 or 154 bp allele of Xgwm469-5D, respectively. Therefore, Xgwm469-5D is well suited for marker assisted selection for SBCMV resistance.

Dates et versions

hal-00964420 , version 1 (24-03-2014)

Identifiants

Citer

Dragan D. Perovic, Jutta J. Forster, Pierre P. Devaux, Djabbar D. Hariri, Morgane M. Guilleroux, et al.. Mapping and diagnostic marker development for soil-borne cereal mosaic virus resistance in bread wheat. Molecular Breeding, 2009, 23 (04), pp.641-653. ⟨10.1007/s11032-009-9262-2⟩. ⟨hal-00964420⟩
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