Congruent geographic variation in saccular otolith shape across multiple species of African cichlids

Loading...
Thumbnail Image
Date
2020
Authors
Zimmermann, Holger
Winkler, Georg
Kaufmann, Alexandra
Strohmeier, Thomas
Koblmüller, Stephan
Sefc, Kristina M.
Editors
Contact
Journal ISSN
Electronic ISSN
ISBN
Bibliographical data
Publisher
Series
DOI (citable link)
ArXiv-ID
International patent number
Link to the license
EU project number
Project
Open Access publication
Collections
Restricted until
Title in another language
Research Projects
Organizational Units
Journal Issue
Publication type
Journal article
Publication status
Published
Published in
Scientific reports ; 10 (2020). - 12820. - Springer Nature. - eISSN 2045-2322
Abstract
The otoliths of teleost fishes exhibit a great deal of inter- and intra-species shape variation. The ecomorphology of the saccular otolith is often studied by comparing its shape across species and populations inhabiting a range of environments. However, formal tests are often lacking to examine how closely variation in otolith shape follows the genetic drift of a neutral trait. Here, we examine patterns of saccular otolith shape variation in four species of African cichlid fishes, each sampled from three field sites. All four species showed the greatest level of otolith shape variation along two principal component axes, one pertaining to otolith height and another to the prominence of an anterior notch. Fish collected from the same site possessed similarities in saccular otolith shape relative to fish from other sites, and these 'site-difference' signatures were consistent across species and observable in both sexes. Sex-differences in saccular otolith shape differed in magnitude from site to site. Population differences in saccular otolith shape did not covary with neutral genetic differentiation between those populations. Otolith height, in particular, displayed large site similarities across species, weak correlation with neutral genetic variation, and strong sex differences, collectively suggesting that otolith shape represents a selectively non-neutral trait.
Summary in another language
Subject (DDC)
570 Biosciences, Biology
Keywords
Conference
Review
undefined / . - undefined, undefined. - (undefined; undefined)
Cite This
ISO 690BOSE, Aneesh P. H., Holger ZIMMERMANN, Georg WINKLER, Alexandra KAUFMANN, Thomas STROHMEIER, Stephan KOBLMÜLLER, Kristina M. SEFC, 2020. Congruent geographic variation in saccular otolith shape across multiple species of African cichlids. In: Scientific reports. Springer Nature. 10, 12820. eISSN 2045-2322. Available under: doi: 10.1038/s41598-020-69701-9
BibTex
@article{Bose2020-07-30Congr-50613,
  year={2020},
  doi={10.1038/s41598-020-69701-9},
  title={Congruent geographic variation in saccular otolith shape across multiple species of African cichlids},
  volume={10},
  journal={Scientific reports},
  author={Bose, Aneesh P. H. and Zimmermann, Holger and Winkler, Georg and Kaufmann, Alexandra and Strohmeier, Thomas and Koblmüller, Stephan and Sefc, Kristina M.},
  note={Article Number: 12820}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/50613">
    <dc:creator>Bose, Aneesh P. H.</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Koblmüller, Stephan</dc:contributor>
    <dcterms:title>Congruent geographic variation in saccular otolith shape across multiple species of African cichlids</dcterms:title>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/50613"/>
    <dc:creator>Sefc, Kristina M.</dc:creator>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/50613/5/Bose_2-eiqz4h2thtpg0.pdf"/>
    <dc:contributor>Winkler, Georg</dc:contributor>
    <dc:contributor>Bose, Aneesh P. H.</dc:contributor>
    <dcterms:abstract xml:lang="eng">The otoliths of teleost fishes exhibit a great deal of inter- and intra-species shape variation. The ecomorphology of the saccular otolith is often studied by comparing its shape across species and populations inhabiting a range of environments. However, formal tests are often lacking to examine how closely variation in otolith shape follows the genetic drift of a neutral trait. Here, we examine patterns of saccular otolith shape variation in four species of African cichlid fishes, each sampled from three field sites. All four species showed the greatest level of otolith shape variation along two principal component axes, one pertaining to otolith height and another to the prominence of an anterior notch. Fish collected from the same site possessed similarities in saccular otolith shape relative to fish from other sites, and these 'site-difference' signatures were consistent across species and observable in both sexes. Sex-differences in saccular otolith shape differed in magnitude from site to site. Population differences in saccular otolith shape did not covary with neutral genetic differentiation between those populations. Otolith height, in particular, displayed large site similarities across species, weak correlation with neutral genetic variation, and strong sex differences, collectively suggesting that otolith shape represents a selectively non-neutral trait.</dcterms:abstract>
    <dc:language>eng</dc:language>
    <dc:creator>Kaufmann, Alexandra</dc:creator>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/50613/5/Bose_2-eiqz4h2thtpg0.pdf"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:creator>Koblmüller, Stephan</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2020-08-31T10:03:40Z</dcterms:available>
    <dc:contributor>Strohmeier, Thomas</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Strohmeier, Thomas</dc:creator>
    <dc:creator>Zimmermann, Holger</dc:creator>
    <dc:contributor>Zimmermann, Holger</dc:contributor>
    <dc:contributor>Sefc, Kristina M.</dc:contributor>
    <dc:creator>Winkler, Georg</dc:creator>
    <dc:rights>Attribution 4.0 International</dc:rights>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2020-08-31T10:03:40Z</dc:date>
    <dcterms:issued>2020-07-30</dcterms:issued>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:contributor>Kaufmann, Alexandra</dc:contributor>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/4.0/"/>
  </rdf:Description>
</rdf:RDF>
Internal note
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Contact
URL of original publication
Test date of URL
Examination date of dissertation
Method of financing
Comment on publication
Alliance license
Corresponding Authors der Uni Konstanz vorhanden
International Co-Authors
Bibliography of Konstanz
No
Refereed
Yes