The effectiveness of molecular markers for the identification of Lr28, Lr35, and Lr47 genes in common wheat

The effectiveness of molecular markers for the identification of Lr28, Lr35, and Lr47 genes in... The effectiveness of molecular markers for the identification of leaf rust resistance genes Lr28, Lr35 and Lr47 transferred to common wheat from Ae. speltoides was assessed using samples of Triticum spp. and Aegilops spp. The markers Sr39F2/R3, BCD260F1/35R2 of the gene Lr35 and PS10 of the Lr47 gene were characterized by high efficiency and were revealed in the lines of common wheat containing these genes, and samples of Ae. speltoides species, the donor of these genes. The marker SCS421 of the Lr28 gene and the markers Sr39#22r, Sr39#50s, BE500705 of the Lr35/Sr39 genes turned out to be less specific. The marker SCS421 was amplified in the samples of the T. timopheevii species, line KS90WRC010 (Lr41), the cultivar of common wheat Pamyati Maystrenko, obtained using synthetic hexaploid T. timopheevii × Ae. tauschii and introgressive lines obtained using Ae. speltoides. The marker BE500705, which indicates the absence of the Lr35/Sr39 genes, was not revealed in the lines TcLr35 and MqSr39, in Ae. speltoides, Ae. tauschii and T. boeoticum (kk-61034, 61038). Analysis of the nucleotide sequences of amplification products obtained with the markers SCS421 and Sr39#22r indicated their low homology with TcLr28 and TcLr35. Using molecular markers, a different distribution of the Lr28 (77%), Lr35 (100%) and Lr47 (15%) genes in 13 studied samples of Ae. speltoides was shown. In introgressive lines derived from Ae. speltoides, contemporary Russian cultivars of common wheat and triticale the Lr28, Lr35, Lr47 genes were not revealed. Russian Journal of Genetics Springer Journals

The effectiveness of molecular markers for the identification of Lr28, Lr35, and Lr47 genes in common wheat

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Springer US
Copyright © 2014 by Pleiades Publishing, Inc.
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
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