Journal
GENETICS
Volume 216, Issue 3, Pages 621-631Publisher
GENETICS SOCIETY AMERICA
DOI: 10.1534/genetics.120.303656
Keywords
achiasmate segregation; interchromosomal effect; inversions; nondisjunction; translocations
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The term interchromosomal effect was originally used to describe a change in the distribution of exchange in the presence of an inversion. First characterized in the 1920s by early Drosophila researchers, it has been observed in multiple organisms. Nearly half a century later, the term began to appear in the human genetics literature to describe the hypothesis that parental chromosome differences, such as translocations or inversions, may increase the frequency of meiotic chromosome nondisjunction. Although it remains unclear if chromosome aberrations truly affect the segregation of structurally normal chromosomes in humans, the use of the term interchromosomal effect in this context persists. This article explores the history of the use of the term interchromosomal effect and discusses how chromosomes with structural aberrations are segregated during meiosis.
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