The genetics of position — effect variegation modifying loci inDrosophila melanogaster
✍ Scribed by Wustmann, G. ;Szidonya, J. ;Taubert, H. ;Reuter, G.
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 787 KB
- Volume
- 217
- Category
- Article
- ISSN
- 0026-8925
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Position-effect variegation for the white locus was studied in normally shaped eyes and in reduced eyes of Bar (B) and Drop (Dr) flies. The average number of spots per eye is successively lower in +, B, and Dr eyes; moreover, B eyes show a relatively strong pigmentation. No simple relation seems to
Addition of heterochromatin suppresses while subtraction enhances position effect variegation. The heterochromatin-sensitive period has been determined in white/white-apricot variegated eyes of YSWa/Wa; Dp (1,3)W264-58 flies. When such larvae, carrying a Y-short (YS) arm at the distal end of one X c
Four dominant suppressor and one enhancer of variegation loci were mapped in the polytene chromosome region extending from section 86C to section 88B of the Drosophila melanogaster third chromosome using a set of deficiencies. The suppressor locus Su-var(3)14 maps in 86CD, Su-var(3)13 in 86F4-7, Su-