title: The sympatric occurrence of two molecular forms of the malaria vector Anopheles gambiae Giles sensu stricto in Kanyemba, in the Zambezi Valley, Zimbabwe.
abstract: The complexity of Anopheles gambiae Giles sensu stricto, a sibling species of the A. gambiae complex, has been shown by the extent of chromosomal inversion polymorphisms and more recently, by divergence at the molecular level. Analysis by PCR of a field population of A. gambiae complex from the Zambezi Valley area of Kanyemba, northern Zimbabwe, showed the co-existence of three sibling species: A. arabiensis (90%), A. gambiae (4%), and A. quadriannulatus (6%). Molecular characterization of the A. gambiae s.s. material revealed the sympatric presence of the two molecular forms S and M within a sample of eight. This is the first record of the co-existence of these two molecular forms in southern Africa.
authors.affiliation: Blair Research Laboratory, Ministry of Health and Child Welfare, Harare, Zimbabwe. masenduron@yahoo.co.uk
authors.forename: Hieronymo T
authors.initials: HT
authors.lastname: Masendu
authors.forename: Richard H
authors.initials: RH
authors.lastname: Hunt
authors.forename: John
authors.initials: J
authors.lastname: Govere
authors.forename: Basil D
authors.initials: BD
authors.lastname: Brooke
authors.forename: T Sam
authors.initials: TS
authors.lastname: Awolola
authors.forename: Maureen
authors.initials: M
authors.lastname: Coetzee
mesh_terms: D000818:Animals; D000852:Anopheles / Q000145:classification / Q000235:genetics*; D003634:DDT; D005260:Female; D007303:Insect Vectors / Q000145:classification / Q000235:genetics*; D007305:Insecticide Resistance / Q000235:genetics; D016133:Polymerase Chain Reaction; D015030:Zimbabwe
chemical_list: D003634:DDT