Nom du corpus

Corpus Systématique Animale

Titre du document

Evidence for postmeiotic expression of ribosomal RNA genes during male gametogenesis

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Batraciens_v2b_00539, Mammiferes_v2b_02655, Oiseaux_v2b_02866, Poissons_v2b_005203
Auteur(s)
  • M. Schmid 1
  • F. J. Hofgärtner 1
  • Maria T. Zenzes 2
  • W. Engel 2
Affiliation(s)
  • 1) Abteilung für Humangenetik der Universität, Oberer Eselsberg, D-6900, Ulm, Federal Republic of Germany
  • 2) Institut für Humangenetik und Anthropologie der Universität, Albertstrasse 11, D-7800, Freiburg, Federal Republic of Germany
Résumé

Pre- and postmeiotic stages of male gametogenesis of 10 different vertebrate species belonging to mammals, birds, amphibians, and fishes were subjected to the Ag-AS staining technique (Goodpasture and Bloom, 1975). A uniform pattern of silver-staining is observable during spermatogenesis of the different vertebrate species. Silver-staining is present in spermatogonia and during the whole period of meiotic prophase, but totally absent during diakinesis and metaphase II of meiosis. In early spermatids silver-staining reappears and only disappears around the beginning of elongation of the spermatid nucleus. Since the Ag-AS technique is believed to stain only transcriptionally active nucleolus organizer regions, our findings indicate that ribosomal RNA genes become reactivated in the haploid spermatid.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - genetics & heredity
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Health Sciences ; 2 - Medicine ; 3 - Genetics(clinical)
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Genetics
Catégories WoS
  • 1 - science ; 2 - genetics & heredity
Identifiant ISTEX
0F170B935A2C7912E629214B1492CF722216BE23
Revue

Human Genetics

Année de publication
1977
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
5.338
Sous-corpus
  • Batraciens
  • Mammiferes
  • Oiseaux
  • Poissons
Type de publication
Journal
ark:/67375/1BB-6X6XSTQP-Q
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