Evidence map›Paper›PMID 31738748›Full record

ArticlePLoS genetics2019

Ancestral male recombination in Drosophila albomicans produced geographically restricted neo-Y chromosome haplotypes varying in age and onset of decay.

Kevin H-C Wei, Doris Bachtrog

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

20 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Neo-sex chromosome evolution shapes sex-dependent asymmetrical introgression barrier.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. The timing of genetic degeneration of sex chromosomes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Review
  18. Epigenetics drive the evolution of sex chromosomes in animals and plants.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Review
  19. Article
  20. 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 at 1 institution in 1 country.

Kevin H-C WeiDepartment of Integrative Biology, University of California Berkeley, Berkeley, California, United States of America.ORCID 0000-0002-1694-9582
Doris BachtrogDepartment of Integrative Biology, University of California Berkeley, Berkeley, California, United States of America.ORCID 0000-0001-9724-9467
University of California, Berkeley · US

Funding

The formation of Heterochromatin on evolving Y chromosomesR01GM101255 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI Doris Bachtrog · 2015 to 2026
$4.9M
The evolution of dosage compensation in DrosophilaR01GM076007 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BACHTROG, DORIS · 2006 to 2020
$3.6M
"Gene Trafficking on an Evolving X Chromosome in Drosophila"R01GM093182 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI BACHTROG, DORIS · 2010 to 2017
$2.7M
NIGMS NIH HHS R01 GM076007NIGMS NIH HHS R01 GM093182NIGMS NIH HHS R01 GM101255
6 · The paper itself

Abstract

Male Drosophila typically have achiasmatic meiosis, and fusions between autosomes and the Y chromosome have repeatedly created non-recombining neo-Y chromosomes that degenerate. Intriguingly, Drosophila nasuta males recombine, but their close relative D. albomicans reverted back to achiasmy after evolving neo-sex chromosomes. Here we use genome-wide polymorphism data to reconstruct the complex evolutionary history of neo-sex chromosomes in D. albomicans and examine the effect of recombination and its cessation on the initiation of neo-Y decay. Population and phylogenomic analyses reveal three distinct neo-Y types that are geographically restricted. Due to ancestral recombination with the neo-X, overall nucleotide diversity on the neo-Y is similar to the neo-X but severely reduced within neo-Y types. Consistently, the neo-Y chromosomes fail to form a monophyletic clade in sliding window trees outside of the region proximal to the fusion. Based on tree topology changes, we inferred the recombination breakpoints that produced haplotypes specific to each neo-Y type. We show that recombination became suppressed at different time points for the different neo-Y haplotypes. Haplotype age correlates with onset of neo-Y decay, and older neo-Y haplotypes show more fixed gene disruption via frameshift indels and down-regulation of neo-Y alleles. Genes are downregulated independently on the different neo-Ys, but are depleted of testes-expressed genes across all haplotypes. This indicates that genes important for male function are initially shielded from degeneration. Our results offer a time course of the early progression of Y chromosome evolution, showing how the suppression of recombination, through the reversal to achiasmy in D. albomicans males, initiates the process of degeneration.

Indexed as

Evolution, MolecularRecombination, GeneticAllelesAnimalsDrosophilaFemaleHaplotypesMaleMeiosisPhylogenyX ChromosomeY Chromosome

Identifiers

PMID31738748
PMCPMC6897423
OpenAlexW2988627005

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LicenceCC BY
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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.