%0 Journal Article %T Specific Resistance Genes in Wheat Chinese Landrace ¡®Wangshuibai¡¯ against Two Iranian Mycosphaerella graminicola Isolates %A Reza Talebi %A Mohsen Mardi %A Nadali babaeian Jelodar %A Mohammad Razavi %J International Journal of Biology %D 2010 %I %R 10.5539/ijb.v2n2p181 %X Septoria tritici blotch, caused by the fungus Mycosphaerella graminicola, is currently the major foliar disease of wheat world-wide, and new sources of resistance and knowledge about the genetics of resistance are needed to improve breeding for resistance against this disease. An F10 recombinant inbred population from a cross between ¡®Wangshuibai¡¯ (Chinese landrace) and the susceptible cultivar ¡®Seri82¡¯ was tested at seedling stage under controlled greenhouse conditions. Two isolate-specific genes for resistance to Iranian M.graminicola isolates IPO08002 and IPO08003 were detected on Chromosomes 2BL and 7DS, respectively. For both genes the resistance was derived from ¡®Wangshuibai¡¯ at positions where Stb9 (on 2BL) and Stb4 (on 7DS) have been reported previously. These two genes are closely linked to microsatellite markers, which can be used for marker-assisted selection. ¡®Wangshuibai¡¯ may therefore be a valuable source of resistance to STB for wheat breeding, especially in Mediterranean environments. %U http://www.ccsenet.org/journal/index.php/ijb/article/view/5453