Published Paper Details:

Tectona grandis L a highly appeciated timber for centuries , Teak is indigeneous to the Indian Peninsula. Random Amplified Polymorphic DNA (RAPD) primers were designed to evaluate the level and pattern of genetic diversity in two populations of Wyanad Seed Production area. 12 RAPD primers yielded 90 amplification products with different sizes, of which 83 (91.20%) were polymorphic. A high species-level genetic diversity was detected with Nei�s (H = 0.2491) and Shannon�s diversity (I = 0.3009). In contrast, the population-level genetic diversity was relatively lower (PPB = 44.25%, H = 0.1336, I = 0.1851). Coefficient of populations differentiation (GST) was 0.5055, indicating that Intra-population and intra-population variation contributed 50.45% and 48.44% respectively to the total genetic variability. This corresponding ratio of variation was supported by AMOVA analysis, limited gene flow (Nm = 0.5122), habitat disintegration and geographical disconnection possibly capable for the population structure of that particular population. UPGMA cluster analysis classified the two populations into twogroups which signifies no notable relationship between the genetic similarity coefficient and geographic origin but showed distingished consociation with morpho-physiological characters. The results of the study provide species-level and population-level genetic profiles for further exploitation and conservation of genetic diversity of Wyanad SPA.