Evidence map›Paper›PMID 32188850›Full record

ArticleNature communications2020

Stable species boundaries despite ten million years of hybridization in tropical eels.

Julia M I Barth, Chrysoula Gubili, Michael Matschiner, Ole K Tørresen, Shun Watanabe, Bernd Egger, Yu-San Han, Eric Feunteun, Ruben Sommaruga, Robert Jehle and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
10.4field-weighted citation impact, top 1% 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

27 citing papers in PubMed, 91 citations in OpenAlex.

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  19. Supergene origin and maintenance in Atlantic cod.Nature ecology & evolution · 2022
    Article
  20. Candidate-species delimitation inEcology and evolution · 2022
    Article
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 9 institutions in 9 countries.

Julia M I Barth *Department of Environmental Sciences, Zoological Institute, University of Basel, Vesalgasse 1, 4051, Basel, Switzerland.ORCID http://orcid.org/0000-0001-5125-819X
Chrysoula Gubili *Fisheries Research Institute, Hellenic Agricultural Organisation-DEMETER, Nea Peramos, 64 007, Kavala, Greece.ORCID http://orcid.org/0000-0002-0866-6259
Michael Matschiner *Department of Palaeontology and Museum, University of Zurich, Karl-Schmid-Strasse 4, 8006, Zurich, Switzerland. michaelmatschiner@mac.com.ORCID http://orcid.org/0000-0003-4741-3884
Ole K TørresenCentre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, P.O. Box 1066 Blindern, 0316, Oslo, Norway.ORCID http://orcid.org/0000-0002-1932-8212
Shun WatanabeFaculty of Agriculture, Kindai University, 3327-204 Nakamachi, Nara, 631-8505, Japan.
Bernd EggerDepartment of Environmental Sciences, Zoological Institute, University of Basel, Vesalgasse 1, 4051, Basel, Switzerland.
Yu-San HanInstitute of Fisheries Science, College of Life Science, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.
Eric FeunteunLaboratoire Biologie des Organismes et Écosystèmes Aquatiques (BOREA), Muséum National d'Histoire Naturelle, CNRS, Sorbonne Université, Université de Caen Normandie, Université des Antilles, IRD, 61 Rue Buffon, CP 53, 75231, Paris Cedex 05, France.
Ruben SommarugaDepartment of Ecology, University of Innsbruck, Technikerstr. 25, 6020, Innsbruck, Austria.ORCID http://orcid.org/0000-0002-1055-2461
Robert JehleSchool of Science, Engineering and Environment, University of Salford, Salford Crescent, Salford, M5 4WT, UK. R.Jehle@salford.ac.uk.ORCID http://orcid.org/0000-0003-0545-5664
Robert SchabetsbergerDepartment of Biosciences, University of Salzburg, Hellbrunnerstrasse 34, 5020, Salzburg, Austria. robert.schabetsberger@sbg.ac.at.ORCID http://orcid.org/0000-0001-7859-6690
University of Basel · CHUniversity of Oslo · NOCentre National de la Recherche Scientifique · FRForest Research Institute · BGKindai University · JPNational Taiwan University · TWUniversität Innsbruck · ATUniversity of Salford · GBUniversity of Salzburg · AT

Funding

Austrian Science Fund FWF P 28381
6 · The paper itself

Abstract

Genomic evidence is increasingly underpinning that hybridization between taxa is commonplace, challenging our views on the mechanisms that maintain their boundaries. Here, we focus on seven catadromous eel species (genus Anguilla) and use genome-wide sequence data from more than 450 individuals sampled across the tropical Indo-Pacific, morphological information, and three newly assembled draft genomes to compare contemporary patterns of hybridization with signatures of past introgression across a time-calibrated phylogeny. We show that the seven species have remained distinct for up to 10 million years and find that the current frequencies of hybridization across species pairs contrast with genomic signatures of past introgression. Based on near-complete asymmetry in the directionality of hybridization and decreasing frequencies of later-generation hybrids, we suggest cytonuclear incompatibilities, hybrid breakdown, and purifying selection as mechanisms that can support species cohesion even when hybridization has been pervasive throughout the evolutionary history of clades.

Indexed as

Hybridization, GeneticAnguillaAnimalsEvolution, MolecularFish ProteinsGene FlowGenomePhylogenyFish Proteins

Identifiers

PMID32188850
PMCPMC7080837
OpenAlexW3012309431

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.