Genetic analysis and SSR mapping on an new stem stripe rust resistance gene YrY206 in Aegilops tauschii.
- Author:
Haiquan ZHANG
1
;
Jie LANG
;
Shuqin MA
;
Baoshi ZHANG
Author Information
1. College of Biology Engineering, Hebei University of Economics and Business, Shijiazhuang 050061, China.
- Publication Type:Journal Article
- MeSH:
Basidiomycota;
pathogenicity;
Chromosome Mapping;
Immunity, Innate;
genetics;
Microsatellite Repeats;
genetics;
Plant Diseases;
genetics;
microbiology;
Plant Proteins;
genetics;
Poaceae;
genetics;
microbiology;
Triticum;
genetics;
microbiology
- From:
Chinese Journal of Biotechnology
2008;24(8):1475-1479
- CountryChina
- Language:Chinese
-
Abstract:
A wheat stripe rust resistance gene was screened out from Aegilops tauschii which is relative genera of wheat species, broadening the genetic basis of the anti-disease character of wheat species. By hybridizing diversed Ae. Tauschii species, which is either resistant or susceptible to wheat stripe rust, a dominant wheat stripe rust resistance gene was detected from Ae. Tauschii (Coss.) Schmal Y206. The novel gene was temporarily designated as YrY206. By bulk segregation analysis, four microsatellite markers Wmc11a, Xgwm71c, Xgwm161 and Xgwm183 were found to be linked to YrY206 with genetic distances of 4.0, 3.3, 1.5 and 9.3 cM, respectively. According to the locations of the linked markers, the resistance gene was located on chromosome 3DS. Based on the chromosomal location and the resistance pattern of the gene, YrY206 should be a novel stripe rust resistance gene.
