Nom du corpus

Corpus Systématique Animale

Titre du document

Variable numbers of simple tandem repeats make birds of the order Ciconiiformes heteroplasmic in their mitochondrial genomes

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Birds
  • Ciconiiformes
  • Mitochondrial DNA Control region
  • Heteroplasmy
Nom du fichier dans la ressource
Oiseaux_v2b_02642
Auteur(s)
  • Thomas Berg 1
  • Truls Moum 1
  • Steinar Johansen 1
Affiliation(s)
  • 1) Department of Cell Biology, Institute of Medical Biology, University of Tromsø, N-9037, Tromsø, Norway
Résumé

We have analyzed a variable domain of the mitochondrial DNA control region of 18 avian species. intra-individual length variation was identified and characterized in 15 species. The occurrence of heteroplasmy among species is phylogenetically consistent with a current classification of birds. Polymerase chain reaction amplifications, direct sequencing, and Southern analysis of mitochondrial DNA showed that the heteroplasmy is due to variable numbers of direct repeats in a tandem organization, located in the control region close to the tRNAPhe gene. The tandem repeats consist of short sequence motifs that vary in size from 4 to 32 base pairs between species. Sequence complexity of the repeat motifs was low, with almost exclusively Ts and Gs in the heavy-strand. Extensive variation in the copy number of the repeats was seen both intra-specifically and within individuals. This is the first report of mitochondrial heteroplasmy characterized at the sequence level in birds.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - microbiology
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 - Health Sciences ; 2 - Medicine ; 3 - General Medicine
Catégories WoS
  • 1 - science ; 2 - genetics & heredity
Identifiant ISTEX
2A9C51DB1C72E88D3D2F1C82B126D73179D2AB16
Revue

Current Genetics

Année de publication
1995
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
7.875
Sous-corpus
  • Oiseaux
Type de publication
Journal
ark:/67375/1BB-0NT3M0N4-B
Powered by Lodex 9.3.8