Starch gel electrophoresis of isozymes was used to estimate gene flow among nine populations of Stomoxys calcitrans (L.) (Diptera: Muscidae) from Thailand. Of the 13 putative loci, nine polymorphic loci were detected. Limited genetic differentiation among populations was observed (FST = 0.060). The highest level of polymorphism was observed in flies from eastern Trat and northern Chiang Mai provinces (69.2%), whereas the lowest level of polymorphism was seen in flies from central Saraburi Province (23.1%). Gene flow between populations varied from 3.27 to 27.53 reproductive migrants per generation. Among the nine populations sampled, no correlation was seen between genetic and geographical distances showing that sampled S. calcitrans fit closely in the same cluster taxa. The electrophoresis of ten isozymes shows a genetic homogeneity of S. calcitrans populations at the scale of Thailand.
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1 June 2010
Population Structure of Stomoxys calcitrans (Diptera: Muscidae) FromNine Regions of Thailand
Krajana Tainchum,
Suprada Sukonthabhirom,
Gerard Duvallet,
Pongthep Akratanakul,
Vithee Muenworn,
Theeraphap Chareonviriyaphap
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Journal of Economic Entomology
Vol. 103 • No. 3
June 2010
Vol. 103 • No. 3
June 2010
gene flow
Genetics
isozyme
Stomoxys cahitrans
Thailand