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  • Title: Genetics of resistance to septoria tritici blotch in the Portuguese wheat breeding line TE 9111.
    Author: Chartrain L, Joaquim P, Berry ST, Arraiano LS, Azanza F, Brown JK.
    Journal: Theor Appl Genet; 2005 Apr; 110(6):1138-44. PubMed ID: 15759105.
    Abstract:
    We report the genetics of resistance of the Portuguese wheat breeding line TE 9111 to septoria tritici blotch (STB), which is caused by Mycosphaerella graminicola. TE 9111 is the most resistant line known in Europe and combines isolate-non-specific, partial resistance with several isolate-specific resistances. We show that, in addition to high levels of partial resistance to STB, TE 9111 has a new gene for resistance to M. graminicola isolate IPO90012, named Stb11, that maps on chromosome 1BS, the Stb6 gene for resistance to isolate IPO323 and, probably, the Stb7 gene for resistance to isolate IPO87019. All of these genes are closely linked to microsatellite markers, which can be used for marker-assisted selection. TE 9111 may therefore be a valuable source of resistance to STB for wheat breeding, especially in Mediterranean environments.
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