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. 1982 May;101(1):81-9.
doi: 10.1093/genetics/101.1.81.

On the Control of the Distribution of Meiotic Exchange in DROSOPHILA MELANOGASTER

A T Carpenter  1 , B S Baker
Affiliations

On the Control of the Distribution of Meiotic Exchange in DROSOPHILA MELANOGASTER

A T Carpenter et al. Genetics. 1982 May.

Abstract

The effects of eight recombination-defective meiotic mutants on crossing over within the X heterochromatin were examined. Since none permit substantial frequencies of exchange within heterochromatin although six lessen or abolish constraints on the location of exchanges within euchromatin, the systems that prohibit exchange within heterochromatin and that govern where exchanges will occur in euchromatin are under separate genetic control.-A minor component of the effects of mei-218 is the production of nonhomologous exchanges; of mei-9 is the recovery of deleted chromatids; and of mei-41 is the recovery of deleted chromatids and/or a low frequency of heterochromatic exchanges.

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