uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Developmental plasticity and disparity in early dipnoan (lungfish) dentitions.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Physiology and Developmental Biology, Evolutionary Organism Biology.
MRC Centre for Developmental Neurobiology, King's College London, London SE1 1UL, UK.
Department of Biological Sciences and MUCEP, Department of Earth and Planetary Sciences, Macquarie University, Sydney 2010, Australia.
2006 (English)In: Evolution & Development, ISSN 1520-541X, E-ISSN 1525-142X, Vol. 8, no 4, 331-349 p.Article in journal (Refereed) Published
Abstract [en]

Although the lungfish (Dipnoi) belong within the Osteichthyes, their dentitions are radically different from other osteichthyans. Lungfish dentitions also show a uniquely high structural disparity during the early evolution of the group, partly owing to the independent variation of odontogenic and odontoclastic processes that are tightly and stereotypically coordinated in other osteichthyans. We present a phylogenetic analysis of early lungfishes incorporating a novel approach to coding these process characters in preference to the resultant adult dental morphology. The results only partially resolve the interrelationships of Devonian dipnoans, but show that the widely discussed hypothesis of separate tooth-plated, dentine-plated, and denticulated lineages is unlikely to be true. The dipnoan status of Diabolepis is corroborated. Lungfish dentitions seem to have undergone extensive and nonparsimonious evolution during the early history of the group, but much of the resulting disparity can be explained by a modest number of evolutionary steps in the underlying developmental processes, those for dental formation (odontogenic) and those for the remodeling of dentine tissue (odontoclastic). Later in lungfish evolution, this disparity was lost as the group settled to a pattern of dental development that is just as stereotypic as, but completely different from, that of other osteichthyans.

Place, publisher, year, edition, pages
2006. Vol. 8, no 4, 331-349 p.
Keyword [en]
palaeontology, development, vertebrate, sarcopterygian, Devonian, lungfish, dentition, plasticity, disparity
National Category
Microbiology
Identifiers
URN: urn:nbn:se:uu:diva-19632DOI: 10.1111/j.1525-142X.2006.00106.xISI: 000238655100003PubMedID: 16805898OAI: oai:DiVA.org:uu-19632DiVA: diva2:47404
Available from: 2006-11-30 Created: 2006-11-30 Last updated: 2017-12-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Authority records BETA

Ahlberg, Per

Search in DiVA

By author/editor
Ahlberg, Per
By organisation
Evolutionary Organism Biology
In the same journal
Evolution & Development
Microbiology

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 500 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf