Abstract: Genetic diversity of wild and domestic apis cerana cerana populations
from Jiangsu province was evaluated with 8 microstaellite loci. The genetic variability within populations and genetic differentiation between two populations were estimated, the results showed that in 8 microstaellite loci, the 31 alleles were found, the number of alleles per locus ranged from 1 to 7, mean numbers of effective alleles was 3.875, the average expected heterozygosity and PIC of all loci were 0.0993 and 0.0778, respectively. Mean numbers of effective alleles of red jungle fowl in wild and domestic populations were 3.83 and 4.17. Genetic differentiation index (FST) of these two populations was 4.9%（P<0.001）, Reynolds’genetic distance and gene flow between the two populations were 0.05024 and 4.852 respectively. These results indicate that the heterozygosity and the genetic
diversity of these two apis cerana cerana populations were rather low, and suggest a tendency towards intermixing.

Key words: apis cerana cerana; microsatellite marker; genetic diversity