Identification of Flanking Markers for the Stem Rust Resistance Gene Sr6 in Wheat

被引:11
|
作者
Tsilo, Toi J. [1 ]
Jin, Yue [2 ]
Anderson, James A. [1 ]
机构
[1] Univ Minnesota, Dep Agron & Plant Genet, St Paul, MN 55108 USA
[2] Univ Minnesota, USDA ARS, Cereal Dis Lab, St Paul, MN 55108 USA
关键词
PUCCINIA-GRAMINIS; UNITED-STATES; TRITICI; RACES;
D O I
10.2135/cropsci2009.11.0648
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The wheat (Triticum aestivum L. and T turgidum L.) stem rust resistance gene Sr6 confers a high level of resistance against a wide range of races of Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. and E. Henn. in North America. In this study, we report the identification of flanking markers for Sr6. We used a population of 139 recombinant inbred lines from the cross MN99394 x MN98550. A partial linkage map of chromosome 2D comprised Xgwm484, Xcfd77, Xcfd43, Xwmc453, Sr6, XwPt_4381, XwPt_0330, Xgpw94049, and Xgwm102. Four markers mapped distal to Sr6, while the other four were proximal within distances of 4.8 and 6.5 cM, respectively. Marker-assisted selection and pyramiding of Sr6 with other stem rust resistance genes could benefit from the availability of Sr6-flanking markers.
引用
收藏
页码:1967 / 1970
页数:4
相关论文
共 50 条