GrainGenes Reference Report: PBR-124-538
Reference
PBR-124-538
Title
Leaf rust and stripe rust resistance genes Lr54 and Yr37 transferred to wheat from Aegilops kotschyi
Journal
Plant Breeding
Year
2005
Volume
124
Pages
538-541
Author
Marais GF McCallum B Snyman JE Pretorius ZA Marais AS
Abstract
The tendency of unpaired meiotic chromosomes to undergo centric misdivision was exploited to translocate leaf rust and stripe rust resistance genes from an Aegilops kotschyi addition chromosome to a group 2 chromosome of wheat. Monosomic and telosomic analyses showed that the translocation occurred to wheat chromosome arm 2DL. The introgressed region did not pair with the corresponding wheat 2DL telosome during meiosis suggesting that a whole arm may have been transferred. Female transmission of the resistance was about 55% whereas male transmission was strongly preferential (96%). The symbols Lr54 and Yr37 are proposed to designate the new resistance genes.
External Databases
https://doi.org/10.1111/j.1439-0523.2005.01116.x
Gene
Yr37 (Triticum)
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: PBR-124-538
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||