Homologs of the Genes for Receptor-Like Kinase Proteins Conferring Plant Resistance to Pathogens. Comparative Analysis of the Homologs of the Wheat Gene Cre3in the Triticeae |
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Authors: | Ermishev V Yu Zaitsev V S Naroditsky B S Khavkin E E |
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Institution: | (1) Institute of Agricultural Biotechnology, Russian Academy of Agricultural Sciences, Timiryazevskaya ul. 42, Moscow, 127550, Russia |
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Abstract: | Direct genomic DNA amplification with the primers recognizing the NBS–kinase sequence of the wheat gene Cre3(Genbank accession AF052641) was used to obtain partial homologs of this gene in perennial and annual rye, wheat, and tall wheatgrass. The nucleotide sequences of the cloned fragments and their deduced amino acid sequences were compared to the already-known Cre3homologs in other wheat, aegilops, and barley genotypes. Within the tribe Triticeae, the extent of homology ranged from 86 to 94% for nucleotide sequences and from 74 to 96% for the deduced amino acid sequences, with the most variable region between Kin3 and PR3 conserved motifs. |
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Keywords: | Aegilops (Triticum) ventricosum Agropyron elongatum (Elytrigia elongata) Hordeum vulgare Secale cereale Secale montanum Triticum aestivum NBS-LRR homologs of resistance genes serine/threonine kinases |
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