Hybrid dysgenesis in Drosophila melanogaster: synthesis of RP strains by chromosomal contamination

• Published in: Genetical Research Vol. 47; no. 3; pp. 181 - 185
• Main Authors: Kidwell, Margaret G., Sang, Helen M.
• Format: Journal Article
• Language: English
• Published: Cambridge, UK Cambridge University Press 01.06.1986
• Subjects: Animals; Biological and medical sciences; Classical genetics, quantitative genetics, hybrids; Crosses, Genetic; cytogenetic analysis; Drosophila melanogaster; Drosophila melanogaster - genetics; Drosophilidae; Female; Fundamental and applied biological sciences. Psychology; Genetics of eukaryotes. Biological and molecular evolution; Hybridization, Genetic; hybrids; Male; Phenotype; Transposition; Hybrid dysgenesis; Arthropoda; Insecta; Invertebrata; Drosophila melanogaster; Diptera
• ISSN: 0016-6723; 1469-5073
• DOI: 10.1017/S0016672300023107

Several strains have been synthesized which have reactive (R) properties in the I–R system of hybrid dysgenesis and which are also classified as active P strains in the P–M system. The synthesis of this previously unknown combination of types was accomplished by employing a mating scheme which allowed transposition (chromosomal contamination) of P, but not I, factors from IP to RM chromosomes in dysgenic F1 males. The successful synthesis of RP strains provides strong evidence that the apparent absence of this combination in natural and laboratory populations of melanogaster is not due to a biological incompatibility between these two types.