SSR marker-based genetic diversity and marker-trait association analysis in aromatic rice (Oryza sativa) landraces

The present study on SSR marker-based genetic diversity and marker-trait association analysis in aromatic rice (Oryza sativa L.) landraces was carried out at R. H. Richharia Research Laboratory, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh during 2020. A total of 25 PCR-based simple sequence repeats (SSR) markers were evaluated a set 90 along with 6 checks which includes 1 non-aromatic 5 check varieties. Phenotypic data for taken 24 yield attributing traits. Polymorphic Information Content (PIC) value ranged from 0.52 (RM316) to 0.79 (RM553) mean of0.69 reveals that all the used this highly informative useful wide range genotypes. Unweighted Pair Group Method Arithmetic Mean (UPGMA) Rho’s similarity based cluster revealed varieties falls one while variety (Mahamaya) forms separate cluster. Mixed linear model (MLM) applied perform genome-wide mapping where 41 significant associations observed potential identified may provide new opportunities breeder improve its traits through marker assisted selection approach.