Evidence map›Paper›PMID 41813157›Full record

ArticleProceedings of the Japan Academy. Series B, Physical and biological sciences2026

Comparative sequence analysis of the mouse pseudoautosomal region from three inbred strains reveals it to be the most rapidly evolving 'chromosome'.

Takaoki Kasahara, Kazuyuki Mekada, Kuniya Abe, Alan Ashworth, Tadafumi Kato

Abstract readComparative Study
In one paragraph

Article in Proceedings of the Japan Academy. Series B, Physical and biological sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Controlling Meiotic Double-Strand Break Formation in Mice: A Web of Multivalent Protein-Protein Interactions.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
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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

5 authors.

Takaoki KasaharaCareer Development Program, RIKEN Center for Brain Science.ORCID http://orcid.org/0000-0002-0953-5146
Kazuyuki MekadaDepartment of Zoology, Okayama University of Science.
Kuniya AbeTechnology and Development Team for Mammalian Genome Dynamics, RIKEN BioResource Research Center.
Alan AshworthHelen Diller Family Comprehensive Cancer Center, University of California San Francisco.ORCID http://orcid.org/0000-0003-1446-7878
Tadafumi KatoDepartment of Psychiatry and Behavioral Science, Juntendo University Graduate School of Medicine.ORCID http://orcid.org/0000-0001-7856-3952

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pseudoautosomal region (PAR) of mammalian sex chromosomes is a small region of sequence identity shared by the X and Y chromosomes that allows pairing, crossover, recombination, and proper segregation of sex chromosomes. Although the mouse PAR sequence was largely a mystery, we have recently obtained the complete PAR sequences of the C57BL/6J and CAST/EiJ strains. Here, we report the complete PAR sequence of a Japanese wild mouse-derived strain, MSM/Ms, and compare the PARs of the three strains. There are considerable differences in the size of PARs between strains (MSM/Ms PAR is only about 20% the length of C57BL/6J PAR) and numerous amino acid substitution variants were found in the PAR genes. High GC-content exons and short introns are common features of the PAR genes and are likely a consequence of maintaining the functions of the encoded proteins during rapid evolution of the mouse PAR, whose recombination frequency in male meiosis is ∼100 times higher than the autosomal average.

Indexed as

Chromosomes, MammalianEvolution, MolecularPseudoautosomal RegionsSequence Analysis, DNAAnimalsBase SequenceIntronsMaleMiceMice, Inbred C57BLC57BL/6JmouseMSM/Mspseudoautosomal regionsex chromosome

Identifiers

PMID41813157
PMCPMC13050634

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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.