ArticleJournal of cell science2026
Investigations into multiple fission yeast chromosome size determinants.
Article in Journal of cell science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors.
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Abstract
Mitotic chromosome dimensions differ between species, and they differ between developmental stages within an organism. The physiological determinants of chromosome size remain poorly understood. Here, we investigate chromosome size determinants in the fission yeast Schizosaccharomyces pombe. Super-resolution microscopy and semi-automated measurements reveal that cell and nuclear volume in interphase, and the time spent in mitosis (both previously proposed chromosome size determinants), have little influence on resultant chromosome dimensions. Instead, levels of the chromosomal condensin complex affect chromosome size, with increasing condensin levels resulting in more compact (thinner and shorter) chromosomes. Our observations inform the understanding of how chromosome dimensions are controlled in an organism. They suggest that a chromosome-intrinsic mechanism sets chromosome size, more so than the environment in which chromosomes find themselves in.
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