Review
doi: 10.1016/0168-9525(93)90249-h.
Requiem for distributive segregation: achiasmate segregation in Drosophila females
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- PMID: 8236460
- DOI: 10.1016/0168-9525(93)90249-h
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Review
Requiem for distributive segregation: achiasmate segregation in Drosophila females
Trends Genet.
1993 Sep.
Abstract
The segregation of achiasmate chromosome pairs at meiosis I is not brought about by a single 'distributive system' as previously thought, but rather by two separate mechanisms. One system uses the pairing of proximal heterochromatic sequences to mediate the segregation of achiasmate homologs-an observation that, at long last, defines a function for heterochromatin. The other system facilitates the segregation of heterologous chromosomes, by an as yet undiscovered mechanism.
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