Evidence map›Paper›PMID 33673731›Full record

ArticleInternational journal of molecular sciences2021

DNA Organization along Pachytene Chromosome Axes and Its Relationship with Crossover Frequencies.

Lucía Del Priore, María Inés Pigozzi

Abstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Cytomolecular Organisation of the Nuclear Genome.International journal of molecular sciences · 2022
    Article
  5. Fourth Report on Chicken Genes and Chromosomes 2022.Cytogenetic and genome research · 2022
    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.

Lucía Del PrioreINBIOMED-Instituto de Investigaciones Biomédicas, Universidad de Buenos Aires-CONICET, Facultad de Medicina, Paraguay 2155, C1121ABG Buenos Aires, Argentina.
María Inés PigozziINBIOMED-Instituto de Investigaciones Biomédicas, Universidad de Buenos Aires-CONICET, Facultad de Medicina, Paraguay 2155, C1121ABG Buenos Aires, Argentina.ORCID 0000-0002-3105-0073

Funding

Agencia Nacional de Promoción Científica y Tecnológica BID-PICT 2016, N°2302
6 · The paper itself

Abstract

During meiosis, the number of crossovers vary in correlation to the length of prophase chromosome axes at the synaptonemal complex stage. It has been proposed that the regular spacing of the DNA loops, along with the close relationship of the recombination complexes and the meiotic axes are at the basis of this covariation. Here, we use a cytogenomic approach to investigate the relationship between the synaptonemal complex length and the DNA content in chicken oocytes during the pachytene stage of the first meiotic prophase. The synaptonemal complex to DNA ratios of specific chromosomes and chromosome segments were compared against the recombination rates obtained by MLH1 focus mapping. The present results show variations in the DNA packing ratios of macro- and microbivalents and also between regions within the same bivalent. Chromosome or chromosome regions with higher crossover rates form comparatively longer synaptonemal complexes than expected based on their DNA content. These observations are compatible with the formation of higher number of shorter DNA loops along meiotic axes in regions with higher recombination levels.

Indexed as

Crossing Over, GeneticMeiosisRecombination, GeneticSynaptonemal ComplexAnimalsChickensChromosomes, MammalianDNAFemaleMutL Protein Homolog 1OocytesDNAMutL Protein Homolog 1bird chromosomescrossing overfluorescent in situ hybridizationimmunostainingmeiosisMLH1 focus mapmolecular cytogeneticsrecombination frequenciessynaptonemal complex

Identifiers

PMID33673731
PMCPMC7957551

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.