Regional bivalent-univalent pairing versus trivalent pairing of a trisomic chromosome in Saccharomyces cerevisiae.

Journal Article (Journal Article)

In meiosis I, homologous chromosomes pair, recombine and segregate to opposite poles. These events and subsequent meiosis II ensure that each of the four meiotic products has one complete set of chromosomes. In this study, the meiotic pairing and segregation of a trisomic chromosome in a diploid (2n + 1) yeast strain was examined. We find that trivalent pairing and segregation is the favored arrangement. However, insertions near the centromere in one of the trisomic chromosomes leads to preferential pairing and segregation of the "like" centromeres of the remaining two chromosomes, suggesting that bivalent-univalent pairing and segregation is favored for this region.

Full Text

Duke Authors

Cited Authors

  • Koller, A; Heitman, J; Hall, MN

Published Date

  • November 1996

Published In

Volume / Issue

  • 144 / 3

Start / End Page

  • 957 - 966

PubMed ID

  • 8913741

Pubmed Central ID

  • PMC1207635

International Standard Serial Number (ISSN)

  • 0016-6731

Digital Object Identifier (DOI)

  • 10.1093/genetics/144.3.957


  • eng

Conference Location

  • United States