To understand geographic genetic variation of the species and relationships among populations of the bumble bee, Bombus ardens, we sequenced a portion of mitochondrial COI gene, which corresponds to "DNA Barcode" region (658 bp) from 101 B. ardens individuals collected over 11 localities in Korea. The sequence data were used to investigate genetic diversity within populations and species, geographic variation within species, phylogeographic relationship among populations, and phylogenetic relationship among haplotypes. A total of nine haplortpes were found, but they very close to each other (a maximum sequence divergence of 0. 304%). Summarized, overall moderate to low genetic diversity within populations and species was characteristic, concordant with the high potential to disperse of B. ardens in Korea. There was no clear regional subdivision was observed and relatively high rate of gene flow among localities and low FST was characteristic.

• Min Jee Kim(College of Agriculture & Life Sciences, Chonnam National University)
• Hyung Joo Yoon(Department of Agricultural Biology, National Institute of Agricultural Science & Technology)
• Dong Young Kim(College of Agriculture & Life Sciences, Chonnam National University)
• Hyung Wook Jeong(College of Agriculture & Life Sciences, Chonnam National University)
• Hyung Keun Oh(College of Agriculture & Life Sciences, Chonnam National University)
• Iksoo Kim(College of Agriculture & Life Sciences, Chonnam National University)