Genetic diversity In Teak from outside Africa
After analysis of the 15 loci and using the criterion of a maximum frequency of 95 % for the
most common allele, the percentage of polymorphism is higher than 50 % for all the
populations with an average percentage of 80.55 % (Table 2). It varies from 53.33 %
(Pakse) to 100 % (Nellicutha 15, Nellicutha 16, Masale Vallée and Virnoli). In the natural
area, Thailand showed 73.33 % of polymorphism and 100 % in India. The average
observed heterozygosity, for the 15 analyzed loci, ranged from 0.31 (Pak Lai) to 0.78
(Massale Valley). The average observed heterozygosity was not statistically significant
(0.52) while the expected value under Hardy-Weinberg was 0.48 (Table 2). In Huoi-NaSoon,
the expected heterozygosity (0.34) was significantly higher than observed
heterozygosity (0.32). Except for Huoi-Na-Soon, the rest of the populations were in HardyWeinberg
equilibrium. The mean observed heterozygosity was 0.72 in India and 0.38 in
Thailand whereas the values of expected heterozygosity were 0.77 and 0.41, respectively
for India and Thailand. Within each area, these values were not significantly different. The
number of alleles per locus ranged from 2.06 (Pakse) to 7.66 (Nellicutha16) with a mean of
4.32 per locus. Thailand presents 5.06 alleles per locus while India has 11.8. In India, the
allelic Richness was more of the double than that of Thailand.