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Sugarcane is an important crop producing around 75 % of sugar in world and used as first generation biofuel. In present study, the genomic and gene based microsatellite markers were analyzed by low cost Single Strand Confirmation Polymorphism technique for genetic evaluation of 22 selected sugarcane genotypes. Total 16 genomic and 12 Expression Sequence Tag derived markers were able to amplify the selected sugarcane genotypes. Total 138 alleles were amplified of which 99 alleles (72 %) found polymorphic with an average of 4.9 alleles per locus. Microsatellite marker, VCSSR7 and VCSSR 12 showed monomorphic alleles with frequency 7.1 % over the average of 3.5 obtained for polymorphic locus. The level of Polymorphic Information Content (PIC) varied from 0.09 in VCSSR 6 to 0.88 in VCSSR 11 marker respectively with a mean of 0.49. Genomic SSRs showed more polymorphism than EST-SSRs markers on selected sugarcane genotypes whereas, the genetic similarity indices calculated by Jaccard's similarity coefficient varied from 0.55 to 0.81 indicate a high level of genetic similarity among the genotypes that was mainly attributed to intra specific diversity. Hence, the SSR-SSCP technique helped to identify the genetically diverse clones which could be used in crossing program for introgression of sugar and stress related traits in hybrid sugarcane.

Single strand conformation polymorphism of genomic and EST-SSRs marker and its utility in genetic evaluation of sugarcane