Genetic structure of Asian populations of Bombus ignitus (Hymenoptera: Apidae)

The genetic structure of seven mainland and island Asian populations of Bombus ignitus was investigated using nine microsatellite markers and the sequences of part of the mitochondrial cytochrome b (cytb) gene. While microsatellite markers showed high genetic variability, no sequence variation was f...

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Bibliographic Details
Published in:The Journal of heredity 2004, Vol.95 (1), p.46-52
Main Authors: Shao, Z.Y, Mao, H.X, Fu, W.J, Ono, M, Wang, D.S, Bonizzoni, M, Zhang, Y.P
Format: Article
Language:English
Subjects:
Animal populations
Animals
Apidae
Asia
Base Sequence
Bees
Bees - genetics
Bombus ignitus
cytochrome b
Cytochromes b - genetics
DNA, Mitochondrial - chemistry
DNA, Mitochondrial - genetics
Genetic Variation
Genetics
Geography
Linkage Disequilibrium
Microsatellite Repeats
Mitochondrial DNA
Molecular Sequence Data
Polymerase Chain Reaction
Sequence Analysis, DNA
Sequence Homology, Nucleic Acid
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Summary:The genetic structure of seven mainland and island Asian populations of Bombus ignitus was investigated using nine microsatellite markers and the sequences of part of the mitochondrial cytochrome b (cytb) gene. While microsatellite markers showed high genetic variability, no sequence variation was found in the cytb gene fragment analyzed. The number of microsatellite alleles ranged from 9 to 24. Gene diversities per locus per population ranged from 0.378 to 0.992. Analysis of molecular variance (AMOVA) and most pairwise FST values showed significant genetic differentiation between mainland and island populations. Cytb sequences data and microsatellite bottleneck tests indicated that almost all populations were subjected to recent bottlenecks. Our results suggest that B. ignitus populations diverged due to recent bottlenecks and geographic isolation.
ISSN:0022-1503
1465-7333
DOI:10.1093/jhered/esh008