Abstract
Genetic diversity of 30 galanga ( Alpinia spp.) accessions in Thailand was assessed using amplified fragment length polymorphism (AFLP) technique. Fifteen Eco RI- Mse I primer combinations were used and 403 DNA bands/markers were produced. Two hundreds and sixty-four markers (65.51 %) were polymorphic. Polymorphic information contents (PICs) ranged from 0.00-0.50, with an average of 0.18. Phylogenetic tree was constructed using unweighted pair group method with arithmetic mean (UPGMA). All galanga samples could be classified into 3 major clusters. Principal coordinate analysis (PCoA) was also performed and the result was rather consistent with phylogenetic analysis. The values of similarity coefficient varied from 0.56 to 0.97, with a mean of 0.81. This background genetic information will be useful to galanga improvement project in the future.
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