Pectoral fin and girdle development in the basal actinopterygians Polyodon spathula and Acipenser transmontanus.
Identifieur interne : 001003 ( Main/Curation ); précédent : 001002; suivant : 001004Pectoral fin and girdle development in the basal actinopterygians Polyodon spathula and Acipenser transmontanus.
Auteurs : Marcus C. Davis [États-Unis] ; Neil H. Shubin ; Allan ForceSource :
- Journal of morphology [ 0362-2525 ] ; 2004.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Collagen.
- embryology : Extremities, Fishes.
- growth & development : Extremities, Fishes.
- Animals, Chondrogenesis, Gene Expression Regulation, Developmental.
Abstract
The pectoral fins of Acipenseriformes possess endoskeletons with elements homologous to both the fin radials of teleosts and the limb bones of tetrapods. Here we present a study of pectoral fin development in the North American paddlefish, Polyodon spathula, and the white sturgeon, Acipenser transmontanus, which reveals that aspects of both teleost and tetrapod endoskeletal patterning mechanisms are present in Acipenseriformes. Those elements considered homologous to teleost radials, the propterygium and the mesopterygial radials, form via subdivision of an initially chondrogenic plate of mesenchymal cells called the endoskeletal disc. In Acipenseriformes, elements homologous to the sarcopterygian metapterygium develop separately from the endoskeletal disc as an outgrowth of the endoskeletal shoulder girdle that extends into the posterior margin of the finbud. As in tetrapods, the elongating metapterygium and the metapterygial radials form in a proximal to distal order as discrete condensations from initially nonchondrogenic mesenchyme. Patterns of variation seen in the Acipenseriform fin also correlate with putative homology: all variants from the "normal" fin bauplan involved the metapterygium and the metapterygial radials alone. The primary factor distinguishing Polyodon and Acipenser fin development from each other is the composition of the endoskeletal extracellular matrix. Proteoglycans (visualized with Alcian Blue) and Type II collagen (visualized by immunohistochemistry) are secreted in different places within the mesenchymal anlage of the fin elements and girdle and at different developmental times. Acipenseriform pectoral fins differ from the fins of teleosts in the relative contribution of the endoskeleton and dermal rays. The fins of Polyodon and Acipenser possess elaborate endoskeletons overlapped along their distal margins by dermal lepidotrichia. In contrast, teleost fins generally possess relatively small endoskeletal radials that articulate with the dermal fin skeleton terminally, with little or no proximodistal overlap.
DOI: 10.1002/jmor.10264
PubMed: 15376275
Links toward previous steps (curation, corpus...)
- to stream PubMed, to step Corpus: Pour aller vers cette notice dans l'étape Curation :000553
- to stream PubMed, to step Curation: Pour aller vers cette notice dans l'étape Curation :000553
- to stream PubMed, to step Checkpoint: Pour aller vers cette notice dans l'étape Curation :000553
- to stream Ncbi, to step Merge: Pour aller vers cette notice dans l'étape Curation :000128
- to stream Ncbi, to step Curation: Pour aller vers cette notice dans l'étape Curation :000128
- to stream Ncbi, to step Checkpoint: Pour aller vers cette notice dans l'étape Curation :000128
- to stream Main, to step Merge: Pour aller vers cette notice dans l'étape Curation :001051
Links to Exploration step
pubmed:15376275Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Pectoral fin and girdle development in the basal actinopterygians Polyodon spathula and Acipenser transmontanus.</title>
<author><name sortKey="Davis, Marcus C" sort="Davis, Marcus C" uniqKey="Davis M" first="Marcus C" last="Davis">Marcus C. Davis</name>
<affiliation wicri:level="1"><nlm:affiliation>Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois 60637, USA. mdavis@itsa.ucsf.edu</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois 60637</wicri:regionArea>
<wicri:noRegion>Illinois 60637</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Shubin, Neil H" sort="Shubin, Neil H" uniqKey="Shubin N" first="Neil H" last="Shubin">Neil H. Shubin</name>
</author>
<author><name sortKey="Force, Allan" sort="Force, Allan" uniqKey="Force A" first="Allan" last="Force">Allan Force</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PubMed</idno>
<date when="2004">2004</date>
<idno type="RBID">pubmed:15376275</idno>
<idno type="pmid">15376275</idno>
<idno type="doi">10.1002/jmor.10264</idno>
<idno type="wicri:Area/PubMed/Corpus">000553</idno>
<idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000553</idno>
<idno type="wicri:Area/PubMed/Curation">000553</idno>
<idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000553</idno>
<idno type="wicri:Area/PubMed/Checkpoint">000553</idno>
<idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000553</idno>
<idno type="wicri:Area/Ncbi/Merge">000128</idno>
<idno type="wicri:Area/Ncbi/Curation">000128</idno>
<idno type="wicri:Area/Ncbi/Checkpoint">000128</idno>
<idno type="wicri:doubleKey">0362-2525:2004:Davis M:pectoral:fin:and</idno>
<idno type="wicri:Area/Main/Merge">001051</idno>
<idno type="wicri:Area/Main/Curation">001003</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en">Pectoral fin and girdle development in the basal actinopterygians Polyodon spathula and Acipenser transmontanus.</title>
<author><name sortKey="Davis, Marcus C" sort="Davis, Marcus C" uniqKey="Davis M" first="Marcus C" last="Davis">Marcus C. Davis</name>
<affiliation wicri:level="1"><nlm:affiliation>Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois 60637, USA. mdavis@itsa.ucsf.edu</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois 60637</wicri:regionArea>
<wicri:noRegion>Illinois 60637</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Shubin, Neil H" sort="Shubin, Neil H" uniqKey="Shubin N" first="Neil H" last="Shubin">Neil H. Shubin</name>
</author>
<author><name sortKey="Force, Allan" sort="Force, Allan" uniqKey="Force A" first="Allan" last="Force">Allan Force</name>
</author>
</analytic>
<series><title level="j">Journal of morphology</title>
<idno type="ISSN">0362-2525</idno>
<imprint><date when="2004" type="published">2004</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term>
<term>Chondrogenesis</term>
<term>Collagen (metabolism)</term>
<term>Extremities (embryology)</term>
<term>Extremities (growth & development)</term>
<term>Fishes (embryology)</term>
<term>Fishes (growth & development)</term>
<term>Gene Expression Regulation, Developmental</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Collagen</term>
</keywords>
<keywords scheme="MESH" qualifier="embryology" xml:lang="en"><term>Extremities</term>
<term>Fishes</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Extremities</term>
<term>Fishes</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Animals</term>
<term>Chondrogenesis</term>
<term>Gene Expression Regulation, Developmental</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">The pectoral fins of Acipenseriformes possess endoskeletons with elements homologous to both the fin radials of teleosts and the limb bones of tetrapods. Here we present a study of pectoral fin development in the North American paddlefish, Polyodon spathula, and the white sturgeon, Acipenser transmontanus, which reveals that aspects of both teleost and tetrapod endoskeletal patterning mechanisms are present in Acipenseriformes. Those elements considered homologous to teleost radials, the propterygium and the mesopterygial radials, form via subdivision of an initially chondrogenic plate of mesenchymal cells called the endoskeletal disc. In Acipenseriformes, elements homologous to the sarcopterygian metapterygium develop separately from the endoskeletal disc as an outgrowth of the endoskeletal shoulder girdle that extends into the posterior margin of the finbud. As in tetrapods, the elongating metapterygium and the metapterygial radials form in a proximal to distal order as discrete condensations from initially nonchondrogenic mesenchyme. Patterns of variation seen in the Acipenseriform fin also correlate with putative homology: all variants from the "normal" fin bauplan involved the metapterygium and the metapterygial radials alone. The primary factor distinguishing Polyodon and Acipenser fin development from each other is the composition of the endoskeletal extracellular matrix. Proteoglycans (visualized with Alcian Blue) and Type II collagen (visualized by immunohistochemistry) are secreted in different places within the mesenchymal anlage of the fin elements and girdle and at different developmental times. Acipenseriform pectoral fins differ from the fins of teleosts in the relative contribution of the endoskeleton and dermal rays. The fins of Polyodon and Acipenser possess elaborate endoskeletons overlapped along their distal margins by dermal lepidotrichia. In contrast, teleost fins generally possess relatively small endoskeletal radials that articulate with the dermal fin skeleton terminally, with little or no proximodistal overlap.</div>
</front>
</TEI>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Eau/explor/EsturgeonV1/Data/Main/Curation
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001003 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Curation/biblio.hfd -nk 001003 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Eau |area= EsturgeonV1 |flux= Main |étape= Curation |type= RBID |clé= pubmed:15376275 |texte= Pectoral fin and girdle development in the basal actinopterygians Polyodon spathula and Acipenser transmontanus. }}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Curation/RBID.i -Sk "pubmed:15376275" \ | HfdSelect -Kh $EXPLOR_AREA/Data/Main/Curation/biblio.hfd \ | NlmPubMed2Wicri -a EsturgeonV1
![]() | This area was generated with Dilib version V0.6.27. | ![]() |