Journal article
Introgression of stem rust resistance genes SrTA10187 and SrTA10171 from Aegilops tauschii to wheat
Theoretical and applied genetics, Vol.126(10), pp.2477-2484
10/2013
Handle:
https://hdl.handle.net/2376/108847
PMID: 23864229
Abstract
Aegilops tauschii, the diploid progenitor of the wheat D genome, is a readily accessible germplasm pool for wheat breeding as genes can be transferred to elite wheat cultivars through direct hybridization followed by backcrossing. Gene transfer and genetic mapping can be integrated by developing mapping populations during backcrossing. Using direct crossing, two genes for resistance to the African stem rust fungus race TTKSK (Ug99), were transferred from the Ae. tauschii accessions TA10187 and TA10171 to an elite hard winter wheat line, KS05HW14. BC2 mapping populations were created concurrently with developing advanced backcross lines carrying rust resistance. Bulked segregant analysis on the BC2 populations identified marker loci on 6DS and 7DS linked to stem rust resistance genes transferred from TA10187 and TA10171, respectively. Linkage maps were developed for both genes and closely linked markers reported in this study will be useful for selection and pyramiding with other Ug99-effective stem rust resistance genes. The Ae. tauschii-derived resistance genes were temporarily designated SrTA10187 and SrTA10171 and will serve as valuable resources for stem rust resistance breeding.
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Details
- Title
- Introgression of stem rust resistance genes SrTA10187 and SrTA10171 from Aegilops tauschii to wheat
- Creators
- Eric Olson - Department of Plant and Soil Science Michigan State University East Lansing MI 48824 USAMatthew Rouse - USDA-ARS Cereal Disease Laboratory University of Minnesota St. Paul MN 55108 USAMichael Pumphrey - Department of Crop and Soil Sciences Washington State University Pullman WA 99164-6420 USARobert Bowden - Hard Winter Wheat Genetics Research Unit USDA-ARS Manhattan KS 66502 USABikram Gill - Department of Plant Pathology Kansas State University Manhattan KS 66506 USAJesse Poland - Department of Agronomy Kansas State University Manhattan KS 66506 USA
- Publication Details
- Theoretical and applied genetics, Vol.126(10), pp.2477-2484
- Academic Unit
- Crop and Soil Sciences, Department of
- Publisher
- Springer Berlin Heidelberg; Berlin/Heidelberg
- Identifiers
- 99900547352101842
- Language
- English
- Resource Type
- Journal article