Analysis of genetic diversity among <Emphasis Type="Italic">Swertia chirayita</Emphasis> genotypes

Inter simple sequence repeat (ISSR) markers were used to analyse genetic diversity of Swertia chirayita genotypes collected from the temperate Himalayas of India. Allied species of Swertia chirayita were used in the study as outliers. Nineteen UBC primers generated a total of 315 ISSR bands, revealing 98.7 % polymorphism among the genotypes assayed. This was reduced to 42.5 % when the outliers were excluded. The results revealed a high genetic diversity within the genotypes.