Evidence map›Paper›PMID 25434820›Full record

ArticleStem cell reports2015

Early depletion of primordial germ cells in zebrafish promotes testis formation.

Keh-Weei Tzung, Rie Goto, Jolly M Saju, Rajini Sreenivasan, Taiju Saito, Katsutoshi Arai, Etsuro Yamaha, Mohammad Sorowar Hossain, Meredith E K Calvert, László Orbán

Erratum issuedAbstract read
In one paragraph

Article in Stem cell reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing 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

75 citing papers in PubMed.

  1. Article
  2. Differences in Early Development between Parental Species and Asexual Hybrids forms of European Spined Loaches (GenusSexual development : genetics, molecular biology, evolution, endocrinology, embryology, and pathology of sex determination and differentiation · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Regulation of early gonocyte differentiation in zebrafish.Biochemical Society transactions · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Zoological research · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Estrogen Signaling Inhibits the Expression ofInternational journal of molecular sciences · 2024
    Article
  19. Article
  20. Article

15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Keh-Weei TzungReproductive Genomics Group, Strategic Research Program, Temasek Life Sciences Laboratory, Singapore 117604, Singapore. Electronic address: kehweei.tzung@gmail.com.
Rie GotoNanae Fresh Water Laboratory, Field Science Center for Northern Biosphere, Hokkaido University, Nanae, Kameda, Hokkaido 041-1105, Japan.
Jolly M SajuReproductive Genomics Group, Strategic Research Program, Temasek Life Sciences Laboratory, Singapore 117604, Singapore.
Rajini SreenivasanReproductive Genomics Group, Strategic Research Program, Temasek Life Sciences Laboratory, Singapore 117604, Singapore.
Taiju SaitoNanae Fresh Water Laboratory, Field Science Center for Northern Biosphere, Hokkaido University, Nanae, Kameda, Hokkaido 041-1105, Japan.
Katsutoshi AraiFaculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan.
Etsuro YamahaNanae Fresh Water Laboratory, Field Science Center for Northern Biosphere, Hokkaido University, Nanae, Kameda, Hokkaido 041-1105, Japan.
Mohammad Sorowar HossainReproductive Genomics Group, Strategic Research Program, Temasek Life Sciences Laboratory, Singapore 117604, Singapore.
Meredith E K CalvertBioimaging and Biocomputing Facility, Temasek Life Sciences Laboratory, Singapore 117604, Singapore.
László OrbánReproductive Genomics Group, Strategic Research Program, Temasek Life Sciences Laboratory, Singapore 117604, Singapore; Department of Animal Sciences and Animal Husbandry, Georgikon Faculty, University of Pannonia, 8360 Keszthely, Hungary; Centre for Comparative Genomics, Murdoch University, Murdoch, WA 6150, Australia. Electronic address: laszlo@tll.org.sg.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As complete absence of germ cells leads to sterile males in zebrafish, we explored the relationship between primordial germ cell (PGC) number and sexual development. Our results revealed dimorphic proliferation of PGCs in the early zebrafish larvae, marking the beginning of sexual differentiation. We applied morpholino-based gene knockdown and cell transplantation strategies to demonstrate that a threshold number of PGCs is required for the stability of ovarian fate. Using histology and transcriptomic analyses, we determined that zebrafish gonads are in a meiotic ovarian stage at 14 days postfertilization and identified signaling pathways supporting meiotic oocyte differentiation and eventual female fate. The development of PGC-depleted gonads appears to be restrained and delayed, suggesting that PGC number may directly regulate the variability and length of gonadal transformation and testicular differentiation in zebrafish. We propose that gonadal transformation may function as a developmental buffering mechanism to ensure the reproductive outcome.

Indexed as

AnimalsCell DifferentiationCell ProliferationCluster AnalysisEmbryo, NonmammalianFemaleGene Expression ProfilingGerm CellsGonadsLarvaMaleMeiosisModels, BiologicalReproducibility of ResultsSex CharacteristicsSex DifferentiationTransforming Growth Factor beta

Identifiers

PMID25434820
PMCPMC4297871

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.