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    Touré YT, Petrarca V, Traoré SF, Coulibaly A, Maiga HM, Sankaré O, Sow M, Di Deco MA, Coluzzi M, 1998. Distribution and inversion polymorphism of chromosomally recognized taxa of the Anopheles gambiae complex in Mali, West Africa. Parassitologia 40 :477–511.

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    Bryan JH, Petrarca V, Di Deco MA, Coluzzi M, 1987. Adult behaviour of members of the Anopheles gambiae complex in the Gambia with special reference to An. melas and its chromosomal variants. Parassitologia 29 :221–249.

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    Fonseca LF, Di Deco MA, Carrara GC, Dabo I, Do Rosario V, Petrarca V, 1996. Anopheles gambiae complex near Bissau City, Guinea Bissau, West Africa. J Med Entomol 33 :939–945.

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    Kristan M, Fleischmann H, della Torre A, Stich A, Curtis CF, 2003. Pyrethroid resistance/susceptibility and differential urban/rural distribution of Anopheles arabiensis and An. gambiae s.s. malaria vectors in Nigeria and Ghana. Med Vet Entomol 17 :326–332.

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    Appawu MA, Baffoe Wilmont A, Afari EA, Nkrumah FK, Petrarca V, 1994. Species composition and inversion polymorphism of the Anopheles gambiae complex in some sites of Ghana, west Africa. Acta Trop 56 :15–23.

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    Petrarca V, Sabatinelli G, Touré YT, Di Deco MA, 1998. Morphometric multivariate analysis of field samples of adult Anopheles arabiensis and Anopheles gambiae (Diptera: Culicidae). J Med Entomol 35 :16–25.

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    Petrarca V, Sabatinelli G, Di Deco MA, Papakay M, 1990. The Anopheles gambiae complex in the Federal Islamic Republic of Comoros (Indian Ocean): some cytogenetic and biometric data. Parassitologia 32 :371–380.

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    Robert V, Petrarca V, Carnevale P, Ovazza L, Coluzzi M, 1989. Analyse cytogénétique du complexe Anopheles gambiae dans la région de Bobo-Dioulasso (Burkina Faso). Ann Parasitol Hum Comp 64 :290–311.

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    Rishikesh N, Di Deco MA, Petrarca V, Coluzzi M, 1985. Seasonal variations in indoor resting Anopheles gambiae and Anopheles arabiensis in Kaduna, Nigeria. Acta Trop 42 :165–170.

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    Coluzzi M, 1992. Malaria vector analysis and control. Parasitol Today 8 :113–118.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution and Chromosomal Characterization of the Anopheles gambiae Complex in Angola

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  • 1 Dipartimento di Scienze di Sanità Pubblica, Università degli Studi di Roma “La Sapienza”; Ministry of Health, National Program of Malaria Control, Luanda, Angola; Istituto Pasteur-Fondazione Cenci-Bolognetti; Dipartimento di Genetica e Biologia Molecolare, Università degli Studi di Roma “La Sapienza,” Rome, Italy

Mosquitoes of the Anopheles gambiae complex (N = 1,336) were sampled (2001–2005) across Angola to identify taxa, study inversion polymorphisms, and detect the circumsporozoite protein of Plasmodium falciparum. Anopheles gambiae s.s. was found in all sites; it was characterized as M-form in localities of the tropical dry and semi-desertic belts, whereas the S-form was predominant in comparatively more humid and less anthropized sites. Both forms were characterized by low degrees of chromosomal polymorphism based solely on the 2La inversion, a pattern usually associated with An. gambiae populations from forested, humid, and derived savanna areas. Unexpectedly, this pattern was also observed in M-form populations collected in dry/pre-desertic areas, where this form largely predominates over An. arabiensis, which was also detected in central/inland sites. Anopheles melas was found in northern coastal sites. Three of 534 An. gambiae s.s. were positive for P. falciparum CS-protein, whereas none of the 105 An. melas were positive.

Author Notes

Reprint requests: Alessandra della Torre, Dipartimento di Scienze di Sanità Pubblica, Sezione di Parassitologia, Università “La Sapienza”, Rome, Italy. E-mail: alessandra.dellatorre@uniroma1.it.
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