PARENTAL CONTROL OF POSITION-EFFECT VARIEGATION: I. PARENTAL HETEROCHROMATIN AND EXPRESSION OF THE WHITE LOCUS IN COMPOUND-X DROSOPHILA MELANOGASTER
- 1 July 1959
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 45 (7) , 1003-1007
- https://doi.org/10.1073/pnas.45.7.1003
Abstract
The amount of heterochromatin in the genome has long been known to influence directly the extent of somatic variegation induced by a position-effect chromosomal rearrangement in Drosophila. It has now been shown that the extent of pigmentation in white-variegated eyes does not depend solely on this direct effect of heterochromatin but also is clearly enhanced if: (1) the maternal genome contains certain Y-chromosome fragments, and (2) if the rearrangement responsible for the position-effect variegation is paternal in origin. From the standpoint of the genetic control of pigment differentiation, the novel feature displayed here is that the parental genotype can influence an ontogenetic process in the offspring that takes place rather late in the time sequence leading to an imago.This publication has 1 reference indexed in Scilit:
- Paramutation at the R Locus in MaizeCold Spring Harbor Symposia on Quantitative Biology, 1958