Evidence map›Paper›PMID 27658729›Full record

ArticleScientific reports2016

Sexually dimorphic gene expressions in eels: useful markers for early sex assessment in a conservation context.

Benjamin Geffroy, Florian Guilbaud, Elsa Amilhat, Laurent Beaulaton, Matthias Vignon, Emmanuel Huchet, Jacques Rives, Julien Bobe, Alexis Fostier, Yann Guiguen and 1 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
6.0field-weighted citation impact, top 4% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

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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

11 authors at 6 institutions in 1 country.

Benjamin GeffroyINRA, UR1037 LPGP, Fish Physiology and Genomics, Campus de Beaulieu, 35000 Rennes, France.
Florian GuilbaudINRA, UR1037 LPGP, Fish Physiology and Genomics, Campus de Beaulieu, 35000 Rennes, France.
Elsa AmilhatUMR 5110 CNRS - UPVD (CEFREM), Université de Perpignan, Bâtiment R, 58 Avenue Paul Alduy, 66860 Perpignan Cedex, France.
Laurent BeaulatonOnema, pôle Gest'Aqua, 65 rue de Saint Brieuc, 35042 Rennes Cedex, France.
Matthias VignonINRA, UMR 1224 Ecobiop, Aquapôle, Pôle Gest'Aqua, Quartier Ibarron, 64310, Saint Pée sur Nivelle, France.
Emmanuel HuchetINRA, UMR 1224 Ecobiop, Aquapôle, Pôle Gest'Aqua, Quartier Ibarron, 64310, Saint Pée sur Nivelle, France.
Jacques RivesINRA, UMR 1224 Ecobiop, Aquapôle, Pôle Gest'Aqua, Quartier Ibarron, 64310, Saint Pée sur Nivelle, France.
Julien BobeINRA, UR1037 LPGP, Fish Physiology and Genomics, Campus de Beaulieu, 35000 Rennes, France.
Alexis FostierINRA, UR1037 LPGP, Fish Physiology and Genomics, Campus de Beaulieu, 35000 Rennes, France.
Yann GuiguenINRA, UR1037 LPGP, Fish Physiology and Genomics, Campus de Beaulieu, 35000 Rennes, France.
Agnès BardonnetINRA, UMR 1224 Ecobiop, Aquapôle, Pôle Gest'Aqua, Quartier Ibarron, 64310, Saint Pée sur Nivelle, France.
Fish Physiology and Genomics Institute · FREcosystèmes, Biodiversité, Evolution · FRNutrition Metabolism Aquaculture · FREcologie Comportementale et Biologie des Populations de Poissons · FRFrench National Agency for Water and Aquatic Environments · FRUniversité de Perpignan · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Environmental sex determination (ESD) has been detected in a range of vertebrate reptile and fish species. Eels are characterized by an ESD that occurs relatively late, since sex cannot be histologically determined before individuals reach 28 cm. Because several eel species are at risk of extinction, assessing sex at the earliest stage is a crucial management issue. Based on preliminary results of RNA sequencing, we targeted genes susceptible to be differentially expressed between ovaries and testis at different stages of development. Using qPCR, we detected testis-specific expressions of dmrt1, amh, gsdf and pre-miR202 and ovary-specific expressions were obtained for zar1, zp3 and foxn5. We showed that gene expressions in the gonad of intersexual eels were quite similar to those of males, supporting the idea that intersexual eels represent a transitional stage towards testicular differentiation. To assess whether these genes would be effective early molecular markers, we sampled juvenile eels in two locations with highly skewed sex ratios. The combined expression of six of these genes allowed the discrimination of groups according to their potential future sex and thus this appears to be a useful tool to estimate sex ratios of undifferentiated juvenile eels.

Identifiers

PMID27658729
PMCPMC5034313
OpenAlexW2521513235

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.