X-ray induced pericentric inversions in Anopheles albimanus.
Sixteen different pericentric inversions, ten on chromosome 2 and six on chromosome 3, have been isolated and characterized. The partial sterility in the inversion heterozygotes ranged from about 28 to 50%. Contrary to theoretical considerations, a curvilinear relationship exists between inversion length and partial sterility, whereby a reduction in sterility was noted for progressively longer inversions. The break-points are distributed randomly over the autosomes, but are observed more frequently in the areas of the salivary gland chromosomes where diffuse and broken bands of variable stainability are located.
D000818:Animals; D000852:Anopheles; D002869:Chromosome Aberrations; D007446:Chromosome Inversion; D002874:Chromosome Mapping; D002875:Chromosomes / Q000528:radiation effects*; D003433:Crosses, Genetic; D005804:Genes, Lethal; D007814:Larva; D014965:X-Rays