+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Identification and Molecular Mapping of a Gene in Wheat Conferring Resistance to Mycosphaerella graminicola

, : Identification and Molecular Mapping of a Gene in Wheat Conferring Resistance to Mycosphaerella graminicola. Phytopathology 93(9): 1158-1164

ABSTRACT Septoria tritici leaf blotch (STB), caused by the ascomycete Mycosphaerella graminicola (anamorph Septoria tritici), is an economically important disease of wheat. Breeding for resistance to STB is the most effective means to control this disease and can be facilitated through the use of molecular markers. However, molecular markers linked to most genes for resistance to STB are not yet available. This study was conducted to test for resistance in the parents of a standard wheat mapping population and to map any resistance genes identified. The population consisted of 130 F(10) recombinant-inbred lines (RILs) from a cross between the synthetic hexaploid wheat W7984 and cv. Opata 85. Genetic analysis indicated that a single major gene controls resistance to M. graminicola in this population. This putative resistance gene is now designated Stb8 and was mapped with respect to amplified fragment length polymorphism (AFLP) and microsatellite markers. An AFLP marker, EcoRI-ACG/MseI-CAG5, was linked in repulsion with the resistance gene at a distance of approximately 5.3 centimorgans (cM). Two flanking microsatellite markers, Xgwm146 and Xgwm577, were linked to the Stb8 gene on the long arm of wheat chromosome 7B at distances of 3.5 and 5.3 cM, respectively. The microsatellite markers identified in this study have potential for use in marker-assisted selection in breeding programs and for pyramiding of Stb8 with other genes for resistance to M. graminicola in wheat.


PMID: 18944101

DOI: 10.1094/PHYTO.2003.93.9.1158

Other references

Tonkin, A.M.; Dugan, F.A.; Svenson, R.H.; Sealy, W.C.; Wallace, A.G.; Gallagher, J.J., 1975: Coexistence of functional Kent and Mahaim-type tracts in the pre-excitation syndrome. Demonstration by catheter techniques and epicardial mapping. An unusual patient with Ebstein's anomaly of the tricuspid valve and the Wolff-Parkinson-White syndrome is presented. Ventricular pre-excitation related to conduction over both a right posterior Kent bundle and Mahaim fibers coursing from the...

Anonymous, 2013: Cancer colorrectal. (CCR) es la neoplasia m s frecuente del aparato digestivo y el tercer tumor por incidencia a nivel mundial. Son varios los factores de riesgo y protectores de c ncer colorrectal que se han descrito a lo largo de la historia. Tras el diagn stico hi...

Frommer, U.; Fluegel, H.-Joachim., 2005: The distribution of the halictid bee Halictus scabiosae Rossi, 1790 in central Europe with special consideration of its status in Hesse Hymenoptera Apidae Zur Ausbreitung der Furchenbiene Halictus scabiosae Rossi, 1790 in Mitteleuropa unter besonderer Beruecksichtigung der Situation in Hessen Hymenoptera Apidae. It is reported on the spread of the bee species Halictus scabiosae since 1990 out of its former distribution area in the Upper Rhine Valley, the Lower Main valley and the Nahe valley. The expansion area contains the Lake Konstanz district, the who...

Maris, B.; Verheyden, L.; Samyn, C.; Augustijns, P.; Kinget, R.; Van Den Mooter, G., 2002: Influence of the composition of in-vitro azo-reducing systems on the degradation kinetics of the model compound amaranth. The purpose of this study was to investigate the influence of the composition of in-vitro azo-reducing systems on the degradation kinetics of the model compound amaranth. The degradation kinetics of amaranth were determined under anaerobic conditi...

Raisuddin, S.; Jha, A.N., 2004: Relative sensitivity of fish and mammalian cells to sodium arsenate and arsenite as determined by alkaline single-cell gel electrophoresis and cytokinesis-block micronucleus assay. To protect human and ecosystem health, it is necessary to develop sensitive assays and to identify responsive cells and species (and their life stages). In this study, the relative genotoxicity of two inorganic arsenicals: trivalent sodium arsenit...

Anand, I.S., 2008: Anemia and chronic heart failure implications and treatment options. Anemia is a common comorbidity in patients with heart failure and is associated with worse long-term outcomes. Although the cause of anemia in heart failure is unclear, the weight of evidence suggests that renal dysfunction, along with neurohormo...

Bonne, C., 1940: The pathological anatomy of rat polyarthritis of Collier. The inflammation about the swollen joints of the feet in Colliers polyarthritis of rats is characterized by sero-cellular or even purulent or hemorrhagic exudation sometimes rich in eosinophils in the connective tissue and muscles of the foot, fol...

Burch, P.; Binaghi, M.; Scherer, M.; Wentzel, C.; Bossert, D.; Eberhardt, L.; Neuburger, M.; Scheiffele, P.; Gademann, K., 2013: Total synthesis of gelsemiol. Chemistry 19(8): 2589-2591

Soliman, E.Z.; Shalash, O.A., 2008: Homocysteine, vitamins, and vascular disease prevention: more negative results. American Journal of Clinical Nutrition 87(4): 1069-70; Author Reply 1070-1

Kaseb, H.O.; Gollin, S.M., 2015: Concerning consequences of blocking Notch signaling in satellite muscle stem cells. Frontiers in Cell and Developmental Biology 3: 11-11