ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2016
Ancestral Y-linked genes were maintained by translocation to the X and Y chromosomes fused to an autosomal pair in the Okinawa spiny rat Tokudaia muenninki.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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.
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.
Who cites it
14 citing papers in PubMed, 23 citations in OpenAlex.
- Where Did the Y Chromosome in the Spiny Rat Go, and How Did It Get There?Molecular biology and evolution · 2025Article
- Chromosomal-level assembly of Tokudaia osimensis, Tokudaia tokunoshimensis, and Tokudaia muenninki genomes.Scientific data · 2023Article
- Editorial: Molecular and cytogenetic research advances in human reproduction - volume II.Frontiers in endocrinology · 2023Article
- Establishment of New Genetic Markers and Methods for Sex Determination of Mouse and Human Cells using Polymerase Chain Reactions and Crude DNA Samples.Current genomics · 2022Article
- Review
- Expanding the classical paradigm: what we have learnt from vertebrates about sex chromosome evolution.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Review
- With or Without W? Molecular and Cytogenetic Markers are Not Sufficient for Identification of Environmentally-Induced Sex Reversal in the Bearded Dragon.Sexual development : genetics, molecular biology, evolution, endocrinology, embryology, and pathology of sex determination and differentiation · 2021Article
- Article
- Expression Evolution of Ancestral XY Gametologs across All Major Groups of Placental Mammals.Genome biology and evolution · 2020Article
- Patterns of Sex Chromosome Differentiation in Spiders: Insights from Comparative Genomic Hybridisation.Genes · 2020Article
- Sexual dimorphism in brain transcriptomes of Amami spiny rats (Tokudaia osimensis): a rodent species where males lack the Y chromosome.BMC genomics · 2019Article
- Article
- Unique XCI evolution in Tokudaia: initial XCI of the neo-X chromosome in Tokudaia muenninki and function loss of XIST in Tokudaia osimensis.Chromosoma · 2017Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Two species of the genus Tokudaia lack the Y chromosome and SRY, but several Y-linked genes have been rescued by translocation or transposition to other chromosomes. Tokudaia muenninki is the only species in the genus that maintains the Y owing to sex chromosome-autosome fusions. According to previous studies, many SRY pseudocopies and other Y-linked genes have evolved by excess duplication in this species. Using RNA-seq and RT-PCR, we found that ZFY, EIF2S3Y, TSPY, UTY, DDX3Y, USP9Y, and RBMY, but not UBA1Y, had high deduced amino acid sequence similarity and similar expression patterns with other rodents, suggesting that these genes were functional. Based on FISH and quantitative real-time PCR, all of the genes except for UTY and DDX3Y were amplified on the X and Y chromosomes with approximately 10-66 copies in the male genome. In a comparative analysis of the 372.4-kb BAC sequence and Y-linked gene transcripts from T. muenninki with the mouse Y genomic sequence, we observed that multiple-copy genes in the ancestral Y genome were nonfunctional, indicating that the gene functions were assumed by amplified copies. We also found a LTR sequence at the distal end of a SRY duplication unit, suggesting that unequal sister chromatid exchange mediated by retrotransposable elements could have been involved in SRY amplification. Our results revealed that the Y-linked genes were rescued from degeneration via translocations to other sex chromosomal regions and amplification events in T. muenninki.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.