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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Phylogeography and recent emergence of the Old World screwworm fly, Chrysomya bezziana, based on mitochondrial and nuclear gene sequences
Medical and Veterinary Entomology, Volume 23, No. SUPPL. 1, Year 2009
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Description
A previous study had identified an African and an Asian race of the Old World screwworm fly, Chrysomya bezziana Villeneuve (Diptera: Calliphoridae), based on the 3′ terminal 279 basepairs (bp) of the mitochondrial cytochrome b gene. The current study improved the phylogeographic resolution of cytochrome b for this species by characterizing more of the gene (the 3′ terminal 715 bp) and by sampling more geographical populations, including Oman, Iran, Hong Kong and the Indonesian islands of Sulawesi and East Sumba. Strong support was found for recognizing an African race, but not for a monophyletic Asian race. The cladistic and genealogical relationships among the Asian populations were complex. There was sufficient genetic homogeneity throughout separate regions (mainland Asia and each Indonesian island) to suggest that there are no reproductive barriers within each region that might necessitate the production of more than one strain for control by the sterile insect technique (SIT). Primers were designed for the amplification by polymerase chain reaction of two nuclear loci, the highly conserved elongation factor-1α gene and the less conserved white gene, and the preliminary results indicated that these genes showed the same pattern of small-scale regional variation as cytochrome b. The cytochrome b haplotypes are useful markers for identifying the geographical origins of any emerging infestations of the species: the absence of Indonesian and African haplotypes in the Middle East demonstrates that the large-scale transport of livestock is not spreading Old World screwworm. © 2009 The Royal Entomological Society.
Authors & Co-Authors
Ready, Paul Donald
United Kingdom, London
The Natural History Museum, London
Testa, J. M.
United Kingdom, London
The Natural History Museum, London
Wardhana, A. H.
United Kingdom, London
The Natural History Museum, London
Indonesia, Bogor
Research Institute for Veterinary Science, Bogor
Al Izzi, M.
Iraq, Baghdad
Ministry of Science and Technology, Baghdad
Sudan, Khartoum
Arab Organization for Agricultural Development
Khalaj, M.
Iran, Tehran
Iranian Veterinary Organization, Tehran
J. R. Hall, Martin Jonathan Richard
United Kingdom, London
The Natural History Museum, London
Statistics
Citations: 28
Authors: 6
Affiliations: 5
Identifiers
Doi:
10.1111/j.1365-2915.2008.00771.x
ISSN:
0269283X
e-ISSN:
13652915
Research Areas
Cancer
Genetics And Genomics
Sexual And Reproductive Health