Özet:

Evaluation for drought tolerance and SSR (microsatellite) markers based molecular polymorphism were investigated in F6 plant population raised via single seed descent method from a cross between drought tolerant japonica rice variety Azucena and drought sensitive premium traditional Basmati rice variety Taraori Basmati HBC 19. A total of 50 F6 plants were evaluated individually for drought tolerance on 1-9 scale on the basis of agronomic characteristics, root and shoot traits, relative water content and visual observations; the average score ranged between 1to 8.3. Fourteen plants each in the category of drought tolerant and drought sensitive were selected from F6 population for SSR marker analysis using 30 SSR markers covering all the chromosomes. The 28 Azucena × HBC19 F6 plants had an allele from either of the two parental lines (homozygous condition) or alleles from both the parental rice varieties (heterozygous condition). Frequency of HBC19 specific alleles was higher in comparison to Azucena in selected drought tolerant and drought sensitive Azucena x HBC19 F6 plants, which may be indicative of segregation distortion. At ten SSR loci new/recombinant alleles were obtained which indicate the active recombination between genomes of two rice varieties. Cluster tree analysis and principal component analysis demonstrate hig

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