Abstract
Genetic diversity and population differentiation of the giant honey bee (Apis dorsata) in Thailand were examined. Six PCR-RFLP mitotypes were generated from digestion of the COI-COII, Cytb-tRNA(ser), ATPase6-8, and lrRNA genes with Dra I and Hin fI. Low genetic diversity (h=0.074, pi=0.032%) and a lack of genetic population differentiation between A. dorsata originating from geographically different regions were observed from mtDNA polymorphisms (P > 0.05). In contrast, microsatellite (A14, A24, and A88) polymorphisms revealed a relatively high level of genetic diversity in A. dorsata (H (o)=0.68-0.74, average number of alleles per locus=6.0-9.0). Both A24 and A88 indicated significant population differentiation between bees from the north-to-central region (north, northeast, and central regions), peninsular Thailand, and Samui Island.
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