GrainGenes Reference Report: PHY-95-1266
Reference
PHY-95-1266
Title
Identification, chromosome location, and diagnostic markers for a new gene (YrCN19) for resistance to wheat stripe rust.
Journal
Phytopathology
Year
2005
Volume
95
Pages
1266-1270
Author
Luo PG Ren ZL Zhang HQ Zhang HY
Abstract
Several wheat lines and cultivars of wheat (Triticum aestivum) originating from the southwestern region of China were found to be highly resistant to stripe rust by inoculation with the prevalent races (CYR30, CYR31, and CYR32) and newly emerged races (H46-4, SY11-4 and SY11-14) of the pathogen. An inheritance study of the resistance to stripe rust was carried out by crossing resistant AIM6 with susceptible BeiZ76. Results indicated that the resistance to stripe rust was controlled by a single dominant gene. The 112 F2 plants chosen from the cross BeiZ76/ AIM6 were analyzed with 218 pairs of microsatellite primers to determine the map location of the resistance gene. A simple sequence repeat marker on chromosome arm 2BS, Xgwm410, showed polymorphism and co-segregation between stripe rust resistant and susceptible plants. From the pedigree, inheritance, molecular marker, and resistance response, it is concluded that the stripe rust resistance gene in wheat cv. Chuan-nong19 (CN19) and wheat lines AIM5 and AIM6 is a novel gene, designated YrCN19. The microsatellite primer Xgwm410 is a diagnostic marker of the resistance gene YrCN19, which has potential for application in the marker-assisted breeding of wheat.
External Databases
https://doi.org/10.1094/PHYTO-95-1266
Gene
YrCN19 (Triticum) Yr41 (Triticum)
Locus
YrCN19 Yr41
QTL
Yr41
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: PHY-95-1266
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||