Experimental hybridization between members of the Simulium damnosum complex.
Males of the Beffa form of Simulium soubrense Vajime and Dunbar were successfully crossed with female S.squamosum V. & D. and S.sanctipauli V. & D. Fertile eggs from both crosses were reared to larvae and, in the case of the Beffa x squamosum cross, to adults. Larval chromosomes from the Beffa x sanctipauli cross had normally paired homologues but those of the Beffa x squamosum cross showed extensive asynapsis and large heterozygous loops. The morphology of the larval and adult hybrids from the Beffa x squamosum cross were more characteristic of squamosum, but the adult males had scutal patterns typical of the Beffa form and retained this form's laboratory-mating propensity.
Meredith
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SE
WHO Onchocerciasis Control Programme, Ouagadougou, Burkina Faso.
Boakye
D A
DA
Raybould
J N
JN
Cheke
R A
RA
D000818:Animals; D002875:Chromosomes / Q000648:ultrastructure; D003433:Crosses, Genetic; D005260:Female; D006824:Hybridization, Genetic / Q000235:genetics*; D007303:Insect Vectors / Q000235:genetics*; D008297:Male; D012843:Simuliidae / Q000235:genetics*