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Meiotic drive on aberrant chromosome 1 in the mouse is determined by a linked distorter

Published online by Cambridge University Press:  14 April 2009

Sergei I. Agulnik ,
Igor D. Sabantsev ,
Galina V. Orlova  and
Anatoly O. Ruvinsky
Sergei I. Agulnik
Affiliation:
Institute of Cytology and Genetics, Siberian Department of Russian Academy of Sciences, Novosibirsk 630090Russia
Igor D. Sabantsev
Affiliation:
Institute of Cytology and Genetics, Siberian Department of Russian Academy of Sciences, Novosibirsk 630090Russia
Galina V. Orlova
Affiliation:
Institute of Cytology and Genetics, Siberian Department of Russian Academy of Sciences, Novosibirsk 630090Russia
Anatoly O. Ruvinsky*
Affiliation:
Institute of Cytology and Genetics, Siberian Department of Russian Academy of Sciences, Novosibirsk 630090Russia
*
*Corresponding author.

Summary

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An aberrant chromosome 1 carrying an inverted fragment with two amplified DNA regions was isolated from wild populations of Mus musculus. Meiotic drive favouring the aberrant chromosome was demonstrated for heterozygous females. Its cause was preferential passage of aberrant chromosome 1 to the oocyte. Genetic analysis allowed us to identify a two-component system conditioning deviation from equal segregation of the homologues. The system consists of a postulated distorter and responder. The distorter is located on chromosome 1 distally to the responder, between the ln and Pep-3 genes, and it acts on the responder when in trans position. Polymorphism of the distorters was manifested as variation in their effect on meiotic drive level in the laboratory strain and mice from wild populations.

Type
Research Article
Information
Genetics Research , Volume 61 , Issue 2 , April 1993 , pp. 91 - 96
Copyright
Copyright © Cambridge University Press 1993

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