THE BEHAVIOR OF NONHOMOLOGOUS CHROMOSOMAL ELEMENTS INVOLVED IN NONRANDOM ASSORTMENT IN DROSOPHILA MELANOGASTER
- 1 January 1960
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 46 (1) , 51-57
- https://doi.org/10.1073/pnas.46.1.51
Abstract
Answers to the questions posed and certain other conclusions concerning the behavior of nonhomologous elements involved in nonrandom assortments in the female of Drosophila can be given: Nonrandom assortments of nonhomologues may be induced in high frequencies by the presence in the genome of 2 or more nonhomologous elements that lack homologous pairing partners. The equality of reciprocal classes that result from these assortments establishes that they are the result of meiotic segregations. The Y chromosome is not a necessary component of this system. When more than 2 such elements are present, competition for associations occur among them. Different elements have different degrees of attraction for a nonhomologue. The proximal heterochromatic regions of chromosomes are not entirely responsible for nonhomologous associations.This publication has 4 references indexed in Scilit:
- Chromosome Pairing, Crossing Over, and Segregation in Meiosis in Drosophila melanogaster FemalesCold Spring Harbor Symposia on Quantitative Biology, 1958
- Localization and Function of Heterochromatin in Drosophila MelanogasterAdvances in Genetics, 1951