Phylogeography of Aedes (Stegomyia) aegypti (L.) and Aedes (Stegomyia) albopictus (Skuse) (Diptera: Culicidae) based on mitochondrial DNA variations.
Aedes (Stegomyia) aegypti (l.) and Aedes (Stegomyia) albopictus (Skuse) are the most important vectors of the dengue and yellow-fever viruses. Both took advantage of trade developments to spread throughout the tropics from their native area: A. aegypti originated from Africa and a. albopictus from South-East Asia. We investigated the relationships between A. aegypti and A. albopictus mosquitoes based on three mitochondrial-DNA genes (cytochrome b, cytochrome oxidase I and NADH dehydrogenase subunit 5). Little genetic variation was observed for a. albopictus, probably owing to the recent spreading of the species via human activities. For A. aegypti, most populations from South America were found to be genetically similar to populations from South-East Asia (Thailand and Vietnam), except for one sample from Boa Vista (northern Amazonia), which was more closely related to samples from Africa (Guinea and Ivory Coast). This suggests that African populations of A. aegypti introduced during the slave trade have persisted in Boa Vista, resisting eradication campaigns.
Mousson
Laurence
L
Insectes et Maladies Infectieuses (formerly Ecologie des Systèmes Vectoriels), Institut Pasteur, 25-28 rue du Dr Roux, 75724 Paris cedex 15, France.
Dauga
Catherine
C
Garrigues
Thomas
T
Schaffner
Francis
F
Vazeille
Marie
M
Failloux
Anna-Bella
AB
D000330:Aedes / Q000235:genetics*; D000818:Animals; D001483:Base Sequence; D007560:Cote d'Ivoire; D045303:Cytochromes b / Q000235:genetics; D004272:DNA, Mitochondrial / Q000235:genetics; D003576:Electron Transport Complex IV / Q000235:genetics; D014644:Genetic Variation; D005843:Geography; D016701:Guinea; D016013:Likelihood Functions; D008969:Molecular Sequence Data; D009245:NADH Dehydrogenase / Q000235:genetics; D010802:Phylogeny; D011110:Polymorphism, Genetic; D021122:Protein Subunits / Q000235:genetics; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid; D013045:Species Specificity; D013785:Thailand; D013997:Time Factors; D014744:Vietnam
D004272:DNA, Mitochondrial; D021122:Protein Subunits; D045303:Cytochromes b; D009245:NADH Dehydrogenase; D003576:Electron Transport Complex IV