Lr39+Pm21: a New Effective Combination of Resistance Genes for Leaf Rust and Powdery Mildew in Wheat

被引：4
|
作者：
Pietrusinska, Aleksandra [1 ]
Czembor, Pawel Czestobor [2 ]
Czembor, Jerzy Henryk [1 ]
机构：
[1] Natl Res Inst Radzikow, Plant Breeding & Acclimatizat Inst, Dept Plant Breeding & Genet, PL-05870 Blonie, Poland
[2] Natl Res Inst Radzikow, Plant Breeding & Acclimatizat Inst, Dept Plant Pathol, PL-05870 Blonie, Poland
来源：
CZECH JOURNAL OF GENETICS AND PLANT BREEDING | 2013年 / 49卷 / 03期
关键词：
Blumeria graminis; gene pyramiding; Puccinia triticina; TRITICUM-AESTIVUM; MARKERS; PM21; MAP;
D O I：
10.17221/150/2012-CJGPB
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Two effective resistance genes were introduced, one for leaf rust (Lr39) and the other for powdery mildew (Pm21), into the susceptible German wheat cv. Lexus. Molecular selection of plant material was carried out using closely linked markers to the introduced genes (foreground selection). In addition, for the BC1F1 population, background selection was carried out using AFLP markers that were distributed randomly throughout the wheat genome. Moreover, resistance tests were conducted using natural pathogen populations of Puccinia triticina and Blumeria graminis. The use of molecular markers for foreground selection in combination with pathology tests enabled 66 homozygous lines to be obtained that were simultaneously resistant to leaf rust and powdery mildew.
引用
收藏
页码：109 / 115
页数：7
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