ISSN - 10227954, EISSN - 16083369, Russian Journal of Genetics, 1996, vol. 32, p. 934-938
P-M Hybrid Dysgenesis in a Natural Population of Drosophila from Altai
The P-M status of 13 isofemale lines from a natural population of Drosophila melanogaster from Biisk (Altai) was determined by estimation of the frequency of female gonadal sterility in diagnostic crosses. The content of P elements in genomes was estimated by in situ hybridization. The average level of P sensitivity was 97.3%; the average number p-element copies per genome was 27.5. This value is significantly higher than estimates of the average copy number of the P element obtained for other populations with similar levels of P sensitivity. No relationship between the P-element copy number in the lines and their level of P sensitivity was demonstrated. Based on the data obtained, the Altai population may be assigned to populations of M' type.