Genetic variability of the stable fly assessed on a global scale using amplified fragment length polymorphism

The stable fly, Stomoxys calcitrans (L.) (Diptera: Muscidae), is a blood-feeding, economically important pest of animals and humans worldwide. Improved management strategies are essential and their development would benefit from studies on genetic diversity of stable flies. Especially if done on a g...

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Bibliographic Details
Published in:Insect science 2016-10, Vol.23 (5), p.695-703
Main Authors: Kneeland, Kathleen M., Skoda, Steven R., Foster, John E.
Format: Article
Language:English
Subjects:
AFLP
Amplified Fragment Length Polymorphism Analysis
Animals
biting flies
Diptera
external parasites
Gene Flow
Genetic diversity
Genetic Drift
Genetic Variation
Genotype & phenotype
livestock pests
Muscidae
Muscidae - genetics
Stomoxys calcitrans
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Summary:The stable fly, Stomoxys calcitrans (L.) (Diptera: Muscidae), is a blood-feeding, economically important pest of animals and humans worldwide. Improved management strategies are essential and their development would benefit from studies on genetic diversity of stable flies. Especially if done on a global scale, such research could generate information necessary for the development and application of more efficient control methods. Herein we report on a genetic study of stable flies using amplified fragment length polymorphism, with samples of 10–40 individuals acquired from a total of 25 locations in the Nearctic, Neotropic, Palearctic, Afrotropic and Australasian biogeographical regions. We hypothesized that genetic differentiation would exist across geographical barriers. Although FST (0.33) was moderately high, the GST (0.05; representing genetic diversity between individuals) was very low; Nm values (representing gene flow) were high (9.36). The mismatch distribution and tests of neutrality suggested population expansion, with no genetic differentiation between locations. The analysis of molecular variance (AMOVA) results showed the majority of genetic diversity was within groups. The mantel test showed no correlation between geographic and genetic distance; this strongly supports theAMOVA results. These results suggest that stable flies did not show genetic differentiation but are panmictic, with no evidence of isolation by distance or across geographical barriers.
ISSN:1744-7917
1672-9609
1744-7917
DOI:10.1111/1744-7917.12219