Nom du corpus

Corpus Systématique Animale

Titre du document

Structure and variation of the Nucleolus Organizer Region in turtles

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Mammiferes_v2b_01327
Auteur(s)
  • J. W. Bickham 1,2
  • D. S. Rogers 1,2
Affiliation(s)
  • 1) Department of Wildlife and Fisheries Sciences, Texas A& M University, 77843, College Station, TX, USA
  • 2) Museum of Vertebrate Zoology, University of California, 94720, Berkeley, CA, USA
Résumé

Differential staining techniques were used to study the structure and variation of the NORs of 27 species of cryptodiran turtles. No species or individuals had more than a single pair of NORs. Extensive variation in NOR structure and chromosomal location was found among higher taxa and individual variation in NOR size was common. Thirty eight percent of all individuals studied were heterozygous for the size of the NOR. However, interspecific variation in chromosomal location and structure of the NOR within major taxa was relatively rare. It is concluded that ( I ) the pattern of variation of NORs is consistent with patterns of chromosomal evolution in turtles; (2) Turtles have only a single pair of NORs whereas other animals, such as some mammals, possess numerous NORs; (3) The heterochromatin associated with the NOR is involved in the structure of the nucleolus.

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 - genetique des eucaryotes. evolution biologique et moleculaire
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Insect Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Plant Science
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Genetics
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Animal Science and Zoology
  • 1 - Health Sciences ; 2 - Medicine ; 3 - General Medicine
Catégories WoS
  • 1 - science ; 2 - genetics & heredity
Identifiant ISTEX
E92F4D2E00388CAA225D3AD687F6E833EA8FE2FA
Revue

Genetica

Année de publication
1985
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.704
Sous-corpus
  • Mammiferes
Type de publication
Journal
ark:/67375/1BB-548TWBX9-V
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