doi: 10.15389/agrobiology.2013.1.74eng
UDC 633.11:632.937.14:577.21
JUVENILE AND AGE-SPECIFIC Lr-GENES OF RESISTANCE TO Puccinia triticina Eriks. IN Triticum aestivum L.: REALITY OR CONDITIONALITY
L.G. Tyryshkin, V.G. Zakharov, V.V. Syukov
N.I. Vavilov Research Institute of Plant Industry, Russian Academy of Agricultural Sciences,
44, ul. Bolshaya Morskaya, St. Petersburg, 190000 Russia,
e-mail: tyryshkinlev@rambler.ru
Received April 9, 2012
In accordance with current conception the genes of resistance of soft wheat to leaf rust divided into genes of juvenile and age resistance. The authors studied the virulence of monopustular isolates of disease agent to juvenile and adult plants of isogenic lines of the Thatcher variety and wheat varieties with different Lr genes of resistance. It was shown, that Lr12, Lr13, Lr34, Lr35, Lr46, Lr48 and Lr49 genes, relating to genes of age resistance, determine the resistance to some agent' s isolates also in juvenile plants. The Lr1, Lr10, Lr14а, Lr15, Lr20, Lr23, Lr26, Lr34, Lr36, Lr37 genes, which in set articles were related to genes of juvenile resistance, against individual pathogen isolates manifest properties of juvenile resistance genes, and the beginning of their expression in different leaf level depends on pathogen isolate.
Keywords: wheat, leaf rust, juvenile resistance, adult resistance, genes for resistance.
REFERENCES
1. Kolmer J.A. Genetics of resistance to wheat leaf rust. Annu. Rev. Phytopathol., 1996, 34: 435-455.
2. McIntosh R.A., Yamazaki Y., Devos K.M., Dubcovsky J., Rogers W.J., Appels R. Catalogue of gene symbols for wheat. MACGENE2003 (CD Version). User Manual.
3. McIntosh R.A., Devos K.M., Dubcovsky J., Rogers W.J., Morris C.F., Appels R., Somers D.J., Anderson O.A. Catalogue of gene symbols for wheat: 2007 Supplement. http://wheat.pw.usda.gov/ggpages/wgc/2007upd.html.
4. McIntosh R.A., Yamazaki Y., Dubcovsky J., Rogers W.J., Morris C.F., Somers D.J., Appels R., Devos K.M. Catalogue of gene symbols for wheat 2008. http://wheat.pw.usda.gov/GG2/Triticum/wgc/2008/.
5. McIntosh R.A., Dubcovsky J., Rogers W.J., Morris C.F., Appels R., Xia X.C. Catalogue of gene symbols for wheat: 2009 Supplement.http://www.shi-gen.nig.ac.jp/wheat/komugi/genes/macgene/supplement2009.pdf.
6. McIntosh R.A., Dubcovsky J., Rogers W.J., Morris C.F., Appels R.,
Xia X.C. Catalogue of gene symbols for wheat: 2011 Supplement. http://www.shigen.nig.ac.jp/wheat/komugi/genes/macgene/
supplement2011.pdf.
7. Kurbanova P.M. Geneticheskoe raznoobrazie yarovoi myagkoi pshenitsy po effektivnoi vozrastnoi ustoichivosti k listovoi rzhavchine. Avtoreferat kandidatskoi dissertatsii [Genetic Diversity of Soft Spring Wheat with Respect to Efficiency of Adult Leaf Rust Resistance, Extended Abstract of Cand. Sci. Dissertation]. St. Petersburg, 2011.
8. Tyryshkin L.G. Genetika donorov ustoichivosti pshenitsy k listovoi rzhavchine i usovershenstvovanie metodov differentsiatsii populyatsii vozbuditelya. Avtoreferat kandidatskoi dissertatsii [Genetics of Wheat Donors of Leaf Rust Resistance and Improving the Methods for Differentiation of Pathogen Populations, Extended Abstract of Cand. Sci. Dissertation]. Leningrad, 1988.
9. Saini R.G., Gupta A.K., Nand D.A. Expression of some leaf rust resistance genes at different growth stages in wheat against race 77-A. Current Sci., 1986, 85(16): 802-804.
10. Tyryshkin L.G., Kurbanova P.M. Mikologiya i Fitopatologiya, 2009, 43(1): 75-80.
11. Mains E.B., Jackson H.S. Physiological specialization in leaf rust of wheat, Puccinia triticina Erikss. Phytopathology, 1926, 16: 89-120.
