Evidence map›Paper›PMID 33502451›Full record

ArticleJournal of experimental botany2021

Meiotic chromosome axis remodelling is critical for meiotic recombination in Brassica rapa.

Maria Cuacos, Christophe Lambing, Miguel Pachon-Penalba, Kim Osman, Susan J Armstrong, Ian R Henderson, Eugenio Sanchez-Moran, F Christopher H Franklin, Stefan Heckmann

Open access · hybridAbstract read
In one paragraph

Article in Journal of experimental botany, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. The Control of the Crossover Localization in Allium.International journal of molecular sciences · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Crossover interference mechanism: New lessons from plants.Frontiers in cell and developmental biology · 2023
    Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Meiosis in crops: from genes to genomes.Journal of experimental botany · 2021
    Review
  18. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Maria CuacosLeibniz Institute of Plant Genetics and Crop Plant Research (IPK) OT Gatersleben, D-06466 Seeland, Germany.
Christophe LambingDepartment of Plant Sciences, University of Cambridge, Cambridge CB2 3EA, UK.
Miguel Pachon-PenalbaSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
Kim OsmanSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
Susan J ArmstrongSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
Ian R HendersonDepartment of Plant Sciences, University of Cambridge, Cambridge CB2 3EA, UK.
Eugenio Sanchez-MoranSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
F Christopher H FranklinSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
Stefan HeckmannLeibniz Institute of Plant Genetics and Crop Plant Research (IPK) OT Gatersleben, D-06466 Seeland, Germany.
University of Birmingham · GBLeibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK) · DEUniversity of Cambridge · GB

Funding

Biotechnology and Biological Sciences Research Council BB/J007633/1Biotechnology and Biological Sciences Research Council BB/M004902/1Biotechnology and Biological Sciences Research Council BB/M014908
6 · The paper itself

Abstract

Meiosis generates genetic variation through homologous recombination (HR) that is harnessed during breeding. HR occurs in the context of meiotic chromosome axes and the synaptonemal complex. To study the role of axis remodelling in crossover (CO) formation in a crop species, we characterized mutants of the axis-associated protein ASY1 and the axis-remodelling protein PCH2 in Brassica rapa. asy1 plants form meiotic chromosome axes that fail to synapse. CO formation is almost abolished, and residual chiasmata are proportionally enriched in terminal chromosome regions, particularly in the nucleolar organizing region (NOR)-carrying chromosome arm. pch2 plants show impaired ASY1 loading and remodelling, consequently achieving only partial synapsis, which leads to reduced CO formation and loss of the obligatory CO. PCH2-independent chiasmata are proportionally enriched towards distal chromosome regions. Similarly, in Arabidopsis pch2, COs are increased towards telomeric regions at the expense of (peri-) centromeric COs compared with the wild type. Taken together, in B. rapa, axis formation and remodelling are critical for meiotic fidelity including synapsis and CO formation, and in asy1 and pch2 CO distributions are altered. While asy1 plants are sterile, pch2 plants are semi-sterile and thus PCH2 could be an interesting target for breeding programmes.

Indexed as

Brassica rapaHomologous RecombinationMeiosisChromosome PairingDNA-Binding ProteinsPlant BreedingSynaptonemal ComplexDNA-Binding ProteinsASY1Brassica rapacrossovermeiosismeiotic chromosome axis remodellingmeiotic recombinationPCH2synaptonemal complex

Identifiers

PMID33502451
PMCPMC8023211
OpenAlexW3124187840

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.