Evidence map›Paper›PMID 19629172›Full record

ArticlePLoS genetics2009

Pch2 links chromosome axis remodeling at future crossover sites and crossover distribution during yeast meiosis.

Neeraj Joshi, Aekam Barot, Christine Jamison, G Valentin Börner

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

94 citing papers in PubMed, 152 citations in OpenAlex.

  1. Article
  2. Review
  3. Structure and function of the synaptonemal complex.The Journal of cell biology · 2026
    Review
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34 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Neeraj JoshiDepartment of Biological, Geological, and Environmental Sciences, Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, Ohio, United States of America.
Aekam Barot
Christine Jamison
G Valentin Börner
Cleveland State University · US

Funding

Functional analysis of the synaptonemal complexR15GM080715 · NIGMS · CLEVELAND STATE UNIVERSITY · PI BOERNER, VALENTIN · 2008 to 2009
$277k
NIGMS NIH HHS R15 GM080715NIGMS NIH HHS R15GM080715
6 · The paper itself

Abstract

Segregation of homologous chromosomes during meiosis I depends on appropriately positioned crossovers/chiasmata. Crossover assurance ensures at least one crossover per homolog pair, while interference reduces double crossovers. Here, we have investigated the interplay between chromosome axis morphogenesis and non-random crossover placement. We demonstrate that chromosome axes are structurally modified at future crossover sites as indicated by correspondence between crossover designation marker Zip3 and domains enriched for axis ensemble Hop1/Red1. This association is first detected at the zygotene stage, persists until double Holliday junction resolution, and is controlled by the conserved AAA+ ATPase Pch2. Pch2 further mediates crossover interference, although it is dispensable for crossover formation at normal levels. Thus, interference appears to be superimposed on underlying mechanisms of crossover formation. When recombination-initiating DSBs are reduced, Pch2 is also required for viable spore formation, consistent with further functions in chiasma formation. pch2Delta mutant defects in crossover interference and spore viability at reduced DSB levels are oppositely modulated by temperature, suggesting contributions of two separable pathways to crossover control. Roles of Pch2 in controlling both chromosome axis morphogenesis and crossover placement suggest linkage between these processes. Pch2 is proposed to reorganize chromosome axes into a tiling array of long-range crossover control modules, resulting in chiasma formation at minimum levels and with maximum spacing.

Indexed as

Crossing Over, GeneticMeiosisCell Cycle ProteinsChromosomes, FungalDNA-Binding ProteinsGene ConversionNuclear ProteinsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsUbiquitin-Protein LigasesCell Cycle ProteinsDMC1 protein, S cerevisiaeDNA-Binding ProteinsHOP1 protein, S cerevisiaeNuclear ProteinsPch2 protein, S cerevisiaeRED1 protein, S cerevisiaeSaccharomyces cerevisiae ProteinsUbiquitin-Protein LigasesZip3 protein, S cerevisiae

Identifiers

PMID19629172
PMCPMC2708914
OpenAlexW2035721701

What OpenQuestion holds

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Registered trials

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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.