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Chickpea (Cicer arietinum L.) commonly also known as gram, Chana, Bengal gram and Garbanzo beans is the second most important pulse crop of the world mainly grown in arid and semi-arid regions. Assessment of genetic variability in the base population is the first step in any breeding programme for selection of genetically divergent parents and their use in the crop improvement programme. In the present investigation 20 genotypes of chickpea were characterized using a specific set of 15 numbers of Sequence tagged microsatellite site (STMS) markers. The number of alleles, allelic distribution and their frequency was estimated and found that the 36 alleles amplified with 15 STMS loci having an average of 2.4 alleles per locus. The number of alleles amplified varied from 1 to 4. The Polymorphic information content value ranged from 0 to 0.965 with an average of 0.373 indicated the considerable efficiency of markers for studying the polymorphism level. All primer showed higher polymorphism among the genotypes except two primers namely, TAA59 and GA105 which were monomorphic in nature. Genetic similarity based on UPGMA clustering the dendrogram grouped the 20 genotypes in three clusters, cluster I, II, III comprised of 2, 4, 14 genotypes, respectively. The maximum similarity was found between genotypes ICRISAT-4183 and ICRISAT- 7722 (0.972). The present study provided an insight of the inter-relationship among the genotypes and highlights the genetic distance by STMS markers. The genetic diversity revealed in this study could be exploited for selective breeding programme of chickpea improvement.

Molecular characterization of chickpea (Cicer arietinum L.) genotypes using sequence tagged microsatellite site (STMS) markers