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Vol 46(2012) N 1 p. 107-109; K.V. Boris1*, N.N. Ryzhova1, E.Z. Kochieva1,2 NBS-ARC Domain Sequence Variations in RX1 Homologues of Cultivated and Wild Potato Species 1Center "Bioengineering", Russian Academy of Sciences, Moscow, 117312 Russia2Biological Faculty, Moscow State University, Moscow, 119992 Russia *docboris@mail.ru Received - 2011-06-28; Accepted - 2011-08-16 The NBS-ARC domain sequences of Rx1 homologues were characterized in ten accessions of cultivated and wild potato species differing in their susceptibility to potato virus X. The NBS-ARC domain sequences studied contained a number of indels and nucleotide substitutions, some of them resulting in amino acid substitutions in the conserved motifs of the domain. There were no direct associations between the mutations of the NBS-ARC conserved motifs and the accessions' susceptibility to the X virus. Solanum species, resistance genes, SNP polymorphism, potato virus X |
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