Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Heart fossilization is possible and informs the evolution of cardiac outflow tract in vertebrates
University of Campinas, Brazil; Brazilian Biosciences National Laboratory, Brazil.
Brazilian Biosciences National Laboratory, Brazil; University of São Paulo, Brazil.
University of Campinas, Brazil.
Geopark Araripe, Brazil.
Visa övriga samt affilieringar
2016 (Engelska)Ingår i: eLIFE, E-ISSN 2050-084X, Vol. 5, nr APRIL2016, artikel-id e14698Artikel i tidskrift (Refereegranskat) Published
Resurstyp
Text
Abstract [en]

Elucidating cardiac evolution has been frustrated by lack of fossils. One celebrated enigma in cardiac evolution involves the transition from a cardiac outflow tract dominated by a Multi-Valved conus arteriosus in basal actinopterygians, to an outflow tract commanded by the Non- Valved, elastic, bulbus arteriosus in higher actinopterygians. We demonstrate that cardiac preservation is possible in the extinct fish Rhacolepis buccalis from the Brazilian Cretaceous. Using X-Ray synchrotron microtomography, we show that Rhacolepis fossils display hearts with a conus arteriosus containing at least five valve rows. This represents a transitional morphology between the primitive, multivalvar, conal condition and the derived, monovalvar, bulbar state of the outflow tract in modern actinopterygians. Our data rescue a Long-Lost cardiac phenotype (119-113 Ma) and suggest that outflow tract simplification in actinopterygians is compatible with a gradual, rather than a drastic saltation event. Overall, our results demonstrate the feasibility of studying cardiac evolution in fossils.

Ort, förlag, år, upplaga, sidor
eLife Sciences Publications Ltd , 2016. Vol. 5, nr APRIL2016, artikel-id e14698
Nationell ämneskategori
Evolutionsbiologi
Identifikatorer
URN: urn:nbn:se:ri:diva-127DOI: 10.7554/eLife.14698Scopus ID: 2-s2.0-84964425552OAI: oai:DiVA.org:ri-127DiVA, id: diva2:933927
Tillgänglig från: 2016-06-07 Skapad: 2016-05-31 Senast uppdaterad: 2019-06-14Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopusOpen access article at publishers website

Personposter BETA

Siljeström, Sandra

Sök vidare i DiVA

Av författaren/redaktören
Siljeström, Sandra
Av organisationen
Medicinteknik
I samma tidskrift
eLIFE
Evolutionsbiologi

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 20 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.8