Evidence map›Paper›PMID 21792594›Full record

ArticleChromosoma2011

Possible differences in the two Z chromosomes in male chickens and evolution of MHM sequences in Galliformes.

Yuichiro Itoh, Kathy Kampf, Arthur P Arnold

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Chromosoma, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Banding cytogenetics of the Barbary partridgeComparative cytogenetics · 2018
    Article
  6. Review
  7. Article
  8. Avian sex, sex chromosomes, and dosage compensation in the age of genomics.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2014
    Review
  9. Article
  10. Article
  11. Article
  12. Centromere positions in chicken and Japanese quail chromosomes: de novo centromere formation versus pericentric inversions.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2012
    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

3 authors at 1 institution in 1 country.

Yuichiro ItohDepartment of Integrative Biology and Physiology, University of California-Los Angeles, USA. yitoh@ucla.edu
Kathy Kampf
Arthur P Arnold
University of California, Los Angeles · US

Funding

NEURAL &HORMONAL BASES OF VOCALIZATIONR01DC000217 · NIDCD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ARNOLD, ARTHUR P · 1989 to 2008
$2.4M
NIDCD NIH HHS DC000217NIDCD NIH HHS R01 DC000217
6 · The paper itself

Abstract

The male hypermethylated (MHM) region of the chicken Z chromosome encodes a non-coding RNA that is expressed only in females. The MHM sequence is found only in galliform birds, and Z genes near this region show an unusual degree of dosage compensation between males and females despite the overall low level of dosage compensation in Z chromosome gene expression in birds. Here we report that the MHM locus shows a dramatic sex difference in the configuration of chromatin, open in females and condensed in males, based on DNA fluorescent in situ hybridization of an MHM probe in interphase nuclei. The demethylating agent 5-aza-cytidine causes an asymmetric effect on the two Z chromosomes of males, altering the chromatin configuration, MHM RNA expression, and H4K16Ac modification, suggesting an inequality in the methylation status and chromatin of the two Z chromosomes. We identified numerous MHM-related genomic and RNA sequences that possess a short conserved sequence common to the majority of clones, suggesting the functional importance of the MHM region. Some of the RNA sequences, which like MHM are expressed in females but not in males, are likely to be polyadenylated and have genomic intron/exon structure. The turkey, another galliform bird, has repetitive sequences in the predicted turkey MHM region, raising the question of regional dosage compensation in the turkey as in the chicken.

Indexed as

DNA MethylationEvolution, MolecularAnimalsBase SequenceChickensDosage Compensation, GeneticFemaleMaleMolecular Sequence DataSex ChromosomesSpecies SpecificityTurkeys

Identifiers

PMID21792594
OpenAlexW2084496294

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.