Evidence map›Paper›PMID 29545470›Full record

ArticleThe Plant cell2018

Barbara McClintock's Unsolved Chromosomal Mysteries: Parallels to Common Rearrangements and Karyotype Evolution.

James A Birchler, Fangpu Han

Abstract read
In one paragraph

Article in The Plant cell, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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

15 citing papers in PubMed.

  1. Article
  2. Sterility and structural variation in an arabidopsis pedigree carrying a ring minichromosome.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2025
    Article
  3. Article
  4. Article
  5. Chromosome-level assembly ofFrontiers in plant science · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. The Genome Sequence ofFrontiers in plant science · 2019
    Article
  15. Review
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

2 authors.

James A BirchlerDivision of Biological Sciences, University of Missouri, Columbia, Missouri 65211 birchlerj@missouri.edu.ORCID 0000-0003-3643-2756
Fangpu HanState Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.ORCID 0000-0001-8393-3575

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two obscure studies on chromosomal behavior by Barbara McClintock are revisited in light of subsequent studies and evolutionary genomics of chromosome number reduction. The phenomenon of deficiency recovery in which adjacent genetic markers lost in the zygote reappear in later developmental sectors is discussed in light of de novo centromere formation on chromosomal fragments. Second, McClintock described a small chromosome, which she postulated carried an "X component," that fostered specific types of chromosomal rearrangements mainly involving centromere changes and attachments to the termini of chromosomes. These findings are cast in the context of subsequent studies on centromere misdivision, the tendency of broken fragments to join chromosome ends, and the realization from genomic sequences that nested chromosomal insertion and end-to-end chromosomal fusions are common features of karyotype evolution. Together, these results suggest a synthesis that centromere breaks, inactivation, and de novo formation together with telomeres-acting under some circumstances as double-strand DNA breaks that join with others-is the underlying basis of these chromosomal phenomena.

Indexed as

Evolution, MolecularCentromereChromosomes, PlantGene RearrangementGenomicsKaryotypePlantsTelomere

Identifiers

PMID29545470
PMCPMC5969279

What OpenQuestion holds

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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.