Evidence map›Paper›PMID 17021850›Full record

ArticleChromosoma2006

Incomplete sister chromatid separation of long chromosome arms.

W Rens, L Torosantucci, F Degrassi, M A Ferguson-Smith

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Chromosoma, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.2field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

W RensCambridge Resource Centre for Comparative Genomics, UK. wr203@mole.bio.cam.ac.uk
L Torosantucci
F Degrassi
M A Ferguson-Smith
University of Cambridge · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

Chromosome segregation ensures the equal partitioning of chromosomes at mitosis. However, long chromosome arms may pose a problem for complete sister chromatid separation. In this paper we report on the analysis of cell division in primary cells from field vole Microtus agrestis, a species with 52 chromosomes including two giant sex chromosomes. Dual chromosome painting with probes specific for the X and the Y chromosomes showed that these long chromosomes are prone to mis-segregate, producing DNA bridges between daughter nuclei and micronuclei. Analysis of mitotic cells with incomplete chromatid separation showed that reassembly of the nuclear membrane, deposition of INner CENtromere Protein (INCENP)/Aurora B to the spindle midzone and furrow formation occur while the two groups of daughter chromosomes are still connected by sex chromosome arms. Late cytokinetic processes are not efficiently inhibited by the incomplete segregation as in a significant number of cell divisions cytoplasmic abscission proceeds while Aurora B is at the midbody. Live-cell imaging during late mitotic stages also revealed abnormal cell division with persistent sister chromatid connections. We conclude that late mitotic regulatory events do not monitor incomplete sister chromatid separation of the large X and Y chromosomes of Microtus agrestis, leading to defective segregation of these chromosomes. These findings suggest a limit in chromosome arm length for efficient chromosome transmission through mitosis.

Indexed as

Sister Chromatid ExchangeAnimalsArvicolinaeCell DivisionCells, CulturedChromosome PaintingChromosomesFemaleImage Processing, Computer-AssistedMaleMicroscopy, VideoNuclear EnvelopePotoroidaeSex Chromosomes

Identifiers

PMID17021850
OpenAlexW2014132142

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.