Possible Role of Receptor Like Kinase(S) in Karnal Bunt Pathogenesis and Resistance

Four sets of primers were selected to amplify the members of receptor-like kinase gene family. However, amplification was observed with only one set of primers and only in six out of 20 wheat genotypes tested. The set of primers that amplified 6 varieties was based on sequences of homologous genes of hexaploid and diploid wheat of European varieties (showed considerable polymorphism due to transposable elements) hence; all Indian varieties could not be amplified by PCR. This differential amplification among 20 wheat genotypes may be due to segregation and rearrangement events due to gene deployment during the varietal development. Moreover, results could not be linked definitely with the KB resistance phenomenon until a further study would be conducted.