TRANSLOCATIONS, INVERSIONS AND CORRELATION OF LINKAGE GROUPS TO CHROMOSOMES IN THE MOSQUITOCULEX PIPIENS FATIGANS

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Abstract
Eight sex-linked translocations and two pericentric inversions were artificially induced and isolated in the mosquito Culex pipiens fatigans. Following extensive studies on the genetics and cytology of these aberrations, correlations between the three pairs of chromosomes and the three linkage groups were established. Chromosomes 1 (shortest), 2 (longest) and 3 (intermediate) are correlated to linkage groups I, II and III respectively. These conclusions are in conflict with an earlier publication. A secondary constriction was observed on the m (but not on the M) chromosome near the centromere. Its significance is not yet clear. The genetic and cytological data indicate that the gene y may be located on the long arm and the gene ru on the short arm of chromosome 2.