Genomic portrait of Odisha, India drawn by using 21 autosomal STR markers

In order to find out the genetic diversity in the eastern Indian population of Odisha consisting of various linguistic and ethnic groups, we undertook a study on 508 unrelated healthy individuals belonging to Odisha, India. We assessed genetic variation and compared the data with published literature of Indian population consisting of different ethnic groups from different geographical areas using 21 autosomal STR markers. The most polymorphic and discriminatory STR locus in the studied population was found to be SE33 with the calculated values of 0.94 and 0.991 respectively for both the parameters. The combined power of discrimination (CPD) and combined power of exclusion (CPE) were found to be 1 and 0.999999999704865 respectively. The combined probability of match (CP_m) and combined paternity index (CPI) for all 21 autosomal STR loci were found to be 8.01 × 10⁻²⁶ and 3.45 × 10⁹ respectively. Though, the studied eastern Indian population of Odisha shared its closest genetic affinity with nearest Indian geographical regions, i.e., the population of Jharkhand which is geographically located in eastern India as well as the Central Indian population.