Jaisankar, I.Augustine Jerard, B.Manasseh Moses. EP.Simhachalam2025-01-282025-01-282023Journal of the Andaman Science Association Vol. 28(1):31-39 (2023)http://14.139.158.120:4000/handle/123456789/8831Forty three phenotypically superior accessions of Pterocarpus dalbergioides, identified from different locations of the Andaman and Nicobar Islands, were subjected to genetic diversity analysis using 26 polymerase chain reaction (PCR) markers [12 Random Amplified Polymorphic DNAs (RAPDs) and 14 Inter Simple Sequence Repeats (ISSRs)]. The percentage of polymorphic bands detected by ISSR and RAPD was 37.04 and 37.62%, respectively. RAPD primers OPN 04 and OPN 08 gave 53% & 63% polymorphism respectively. Among ISSR primers, (GACA)8G gave 100% polymorphism. Clustering pattern of accessions of Pterocarpus dalbergioides remained more or less similar in RAPD and combined data of RAPD and ISSR. Present study confirmed fair extent of genetic variation within the species even though it is exposed to a wide range of environmental conditions across Andaman and Nicobar Islands, India.enAndaman and Nicobar IslandsPterocarpus dalbergioides Cluster analysisdendrogramgenetic variabilitymarker and PCRArticle