+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Genetics of stem rust resistance in the spring wheat cultivar Thatcher and the enhancement of stem rust resistance by Lr34

Genetics of stem rust resistance in the spring wheat cultivar Thatcher and the enhancement of stem rust resistance by Lr34

Euphytica 159(3): 391-401

Three recombinant inbred line populations from the crosses RL6071/Thatcher, RL6071/RL6058 (Thatcher Lr34), and Thatcher/RL6058, were used to study the genetics of stem rust resistance in Thatcher and TcLr34. Segregation of stem rust response in each population was used to determine the number of genes conferring resistance, as well as the effect of the leaf rust resistance gene Lr34 on stem rust resistance. The relationship between resistance in seedling and adult plants was also examined, and an attempt was made to identify microsatellite markers linked to genes that were effective in adult plants. In field plot tests at least three additive resistance genes segregated in the RL6071/RL6058 population, whereas two resistance genes segregated in the RL6071/Thatcher population. The presence of the gene Lr34 permitted the expression of additional stem rust resistance in Thatcher-derived lines both at the seedling and adult plant stages. Seedling resistance to races TPMK and RKQQ was significantly associated with resistance in adult plants, whereas seedling resistance to races QCCD and QCCB may have made a minor contribution. The seedling resistance genes Sr16 and Sr12 may have contributed to resistance in adult plants. A molecular marker linked to resistance in adult plants was identified on chromosome 2BL.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 018992460

Download citation: RISBibTeXText

DOI: 10.1007/s10681-007-9541-0

Related references

Leaf rust resistance gene lr34 associated with nonsuppression of stem rust resistance in the wheat cultivar canthatch. Phytopathology 89(6): 518-521, 1999

Expression of a Thatcher Wheat Adult Plant Stem Rust Resistance QTL on Chromosome Arm 2BL is Enhanced by Lr34. Crop Science 51(2): 526-533, 2011

Stripe rust and leaf rust resistance QTL mapping, epistatic interactions, and co-localization with stem rust resistance loci in spring wheat evaluated over three continents. Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 127(11): 2465-2477, 2014

Undescribed wheat gene for partial leaf rust and stripe rust resistance from Thatcher derivatives RL6058 and 90RN2491 carrying Lr34. Journal of Applied Genetics 50(3): 199-204, 2009

Adult plant resistance of wheat triticum sp cultivar thatcher to stem rust puccinia graminis f sp tritici. Phytopathology 71(2): 181-185, 1981

The Lr46 Gene Conditions Partial Adult-Plant Resistance to Stripe Rust, Stem Rust, and Powdery Mildew in Thatcher Wheat. Crop Science 55(6): 2557-2565, 2015

Reactions to stem rust and genetics of stem rust resistance in European Wheat varieties. Can. J. Bol, 48: 8, 1439-1443, 1970

Genetics of stem rust resistance in wheat cultivar romany cultivar es p cultivar 518 9 cultivar bonny and cultivar tama. Canadian Journal of Genetics & Cytology 17(4): 667-674, 1975

Genetics of stem rust resistance in the wheat cultivar red bobs. Canadian Journal of Plant Science 50(3): 229-232, 1970

Characterization and genome-wide association mapping of resistance to leaf rust, stem rust and stripe rust in a geographically diverse collection of spring wheat landraces. Molecular Breeding 37(9): 113, 2017

Molecular Mapping of Stem Rust Resistance Loci Effective Against the Ug99 Race Group of the Stem Rust Pathogen and Validation of a Single Nucleotide Polymorphism Marker Linked to Stem Rust Resistance Gene Sr28. Phytopathology 107(2): 208-215, 2017

Genetics of stem and leaf rust resistance of the wheat cultivar Kavkaz. Vedecke Prace Vyzkumnych Ustavu Rostlinne Vyroby v Praze Ruzyni 19: 63-67, 1974

Genetics of stem- and leaf rust resistance of the wheat cultivar Mephisto. Cereal Rusts Bulletin 14(2): 41-46, 1986

Inheritance of resistance to stem rust in the hard red spring wheat cultivar, 'Waldron'. Proceedings of the American Phytopathological Society 3: 206, 1976

Genetics of resistance in the wheat cultivar chhoti lerma against stem rust race 122. Euphytica 27(2): 461-464, 1978