Nom du corpus

Corpus Systématique Animale

Titre du document

The expression of creatine kinase isozymes in Xenopus tropicalis, Xenopus laevis laevis , and their viable hybrid

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Xenopus
  • creatine kinase
  • isozymes
  • gene duplication and regulation
  • evolution
Nom du fichier dans la ressource
Poissons_v2b_002794
Auteur(s)
  • E. Bürki
Affiliation(s)
  • Station de Zoologie expérimentale, Université de Genève, 154 route de Malagnou, CH-1224, Chêne-Bougeries, Switzerland
Résumé

Starch gel electrophoresis of creatine kinase (CK) isozymes of Xenopus tropicalis shows that at least two different genes code for CK in this diploid (2n=20) species. These genes seem to be orthologous to the CK-A and CK-C genes of extant crossopterygian fish. Additional isozymes may be interpreted either as products of duplicate genes or, more probably, as epigenetically modified forms of the homodimers AtAt and CtCt, respectively. The originally tetraploid species X. laevis laevis (2n=36), which may have arisen by hybridization of diploid ancestors some 30–40 million years ago, has retained expression of all duplicate CK-A and CK-C genes. Differential expression during ontogenesis (CK-A genes) and in different adult tissues (CK-C genes) indicates that divergence occurred not only with respect to the primary sequence of these duplicate genes, but also with respect to the regulation of their expression. In the interspecific hybrid X. 1. laevis × X. tropicalis, all parental CK genes appear to be expressed simultaneously in the heart. However, several subunit combinations cannot be detected on the zymograms.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - evolutionary biology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Genetics
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Molecular Biology
  • 1 - Health Sciences ; 2 - Medicine ; 3 - General Medicine
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
Catégories WoS
  • 1 - science ; 2 - genetics & heredity
  • 1 - science ; 2 - biochemistry & molecular biology
Identifiant ISTEX
54E200B8BD50532AB494D539F1758AA144B0F8B3
Revue

Biochemical Genetics

Année de publication
1985
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.052
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-5J2QRV7K-Z
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