Volume 65, Number 1 (5 2008)                   Tehran Univ Med J 2008, 65(1): 24-32 | Back to browse issues page


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Shemshad K, Oshaghi MA, Yaghoobi-Ershadi MR, Vatandoost H, Abaie MR, Akbarzadeh K, et al . Mitochondrial DNA (mtDNA) structure of Anopheles superpictus populations in IRAN. Tehran Univ Med J. 2008; 65 (1) :24-32
URL: http://tumj.tums.ac.ir/article-1-842-en.html

Abstract:   (3260 Views)
Background: Malaria is still one of the main health problems in south and southeast provinces of Iran and recently on average 10,000-30,000 malaria cases were reported annually. Mosquitoes of Anopheles superpictus are one of the main malaria vectors in Iran and have been reported from all areas of the country including central plateau and plains of Alborz and Zagrous Mountains chains, and with low numbers in shore plains of the Persian Gulf and Caspian Sea. There are variations in larval and adult morphological characters and also in vectorial capacity of this species in different areas of Iran.
Methods: This study has been conducted to investigate rate of mtDNA variation among various populations of this species in Iran. The sequence variation of an 1512 bp length of mitochondrial DNA (mtDNA) cytochrome oxidase subunits 1 and 2 (COI-COII) and an 708 bp sequences of COI gene were analyzed by PCR-RFLP and PCR-direct sequencing respectively.
Results: This study showed that there are considerable variations between and within populations. Rate of variation was 12.3 % between populations and this was 2-5% for within Baluchistan population. Totally 4 haplotypes were observed between populations where 3 occur in Baluchistan and one in other places.
Conclusion: This is the first report on existence of various haplotypes in An. superpictus in science, and presumably this species comprising siblings and is a species complex. Further studies need to confirm this result and to determine the relationship between mtDNA haplotypes and their role in malaria transmission in each locality.
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