Cytogenetic observations on translocations in species A of the Anopheles gambiae complex

The ovarian polytene chromosomes of females of species A of the Anopheles gambiae complex, from colonies suspected of containing heterozygous translocations, were examined. In three lines, the presence of translocations was confirmed and the chromosomes involved in the interchanges identified. The usefulness of cytogenetic methods for the detection of translocations is discussed.