[Identification of polygenes in the system achaete-scute in Drosophila melanogaster using cluster analysis]

Data on location of mobile elements mdg1, Dm412, copia, and B104 in 33 isogenic lines of Drosophila melanogaster has been processed by means of cluster analysis to reveal the relationship between the penetrance for bristle reduction and the distribution of mobile elements. The presence of two groups of sites specific for lines with contrasting penetrance levels have been demonstrated. The specificity suggests that the sites can be associated with the location of corresponding polygenes, affecting the penetrance level in mutant lines.