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Early-replicating heterochromatin.

Soo-Mi Kim·Dharani D Dubey·Joel A Huberman
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Abstract

Euchromatin, which has an open structure and is frequently transcribed, tends to replicate in early S phase. Heterochromatin, which is more condensed and rarely transcribed, usually replicates in late S phase. Here, we report significant deviation from this correlation in the fission yeast, Schizosaccharomyces pombe. We found that heterochromatic centromeres and silent mating-type cassettes replicate in early S phase. Only heterochromatic telomeres replicate in late S phase. Research in other laboratories has shown that occasionally other organisms also replicate some of their heterochromatin in early S phase. Thus, late replication is not an obligatory feature of heterochromatin.

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CentromereDNA ReplicationHeterochromatinSchizosaccharomycesTelomereJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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Soo-Mi Kim, Dharani D Dubey, Joel A Huberman. 2003-02-01. Early-replicating heterochromatin.. https://doi.org/10.1101/gad.1046203

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