Nom du corpus

Corpus Systématique Animale

Titre du document

End association and segregation of the achiasmatic X and Y chromosomes of the sand rat, Psammomys obesus

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_02069
Auteur(s)
  • Terry Ashley 1
  • M. J. Moses 1
Affiliation(s)
  • 1) Department of Anatomy, Duke University Medical Center, 27710, Durham, North Carolina, USA
Résumé

In Psammomys obesus there is no pairing between the X and Y chromosomes and no chiasma formation (Solari and Ashley, 1977). It is demonstrated that ends of the axial elements of the X and Y chromosomes come together during pachytene, and regularly form at least one end-to-end junction. This achiasmatic physical connection between the ends of the X and Y persists until anaphase I, thus assuring the normal distribution of the sex chromosomes observed by light microscopy. In addition, there are no differentiations of the axes of the X and Y similar to those observed in other mammalian species thus far examined, a fact that could influence chromatid cohesiveness and disjunction.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - developmental biology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - ecologie animale, vegetale et microbienne
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
  • 1 - science ; 2 - biochemistry & molecular biology
Identifiant ISTEX
20B51D1F17A7C279778688FCC5E648D047441D21
Revue

Chromosoma

Année de publication
1980
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
6.657
Sous-corpus
  • Mammiferes
Type de publication
Journal
ark:/67375/1BB-HD589ZQ9-P
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