Document Detail


Sequential study of the synaptonemal complex in rat (Rattus norvegicus) oocytes by light and electron microscopy.
MedLine Citation:
PMID:  3243427     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The progression of first meiotic prophase and synaptonemal complex (SC) formation in female rats, Rattus norvegicus S.D., is described through the analysis of the different stages of the first meiotic prophase, and confirms the high synchrony of the process in this species. Leptotene is a stage of very short duration and since pairing of the homologues begins very early, only a leptotene-zygotene stage can be distinguished. The progression of pairing during zygotene is asynchronous. The morphology of the SCs is similar to that described in other species. During diplotene and before disintegration of the lateral elements, desynapsis takes place. In some oocytes a double or even multiple nature of lateral elements was seen. Associations between SCs and nucleoli or nucleolar filaments are frequent. The presence of fragmented SCs can be interpreted as a technical artifact.
Authors:
R Pujol; M Garcia; L Freixa; J Egozcue
Related Documents :
18384767 - Increased frequency of asynapsis and associated meiotic silencing of heterologous chrom...
18467827 - Chromosomal abnormalities, meiotic behavior and fertility in domestic animals.
1959927 - A test of the production line hypothesis of mammalian oogenesis.
15558497 - Extreme heterogeneity in the molecular events leading to the establishment of chiasmata...
11825067 - Evidence of common ancestry for the maple syrup urine disease (msud) y438n allele in no...
9256467 - Evidence of evolutionary up-regulation of the single active x chromosome in mammals bas...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Genetica     Volume:  77     ISSN:  0016-6707     ISO Abbreviation:  Genetica     Publication Date:  1988 Nov 
Date Detail:
Created Date:  1989-06-02     Completed Date:  1989-06-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370740     Medline TA:  Genetica     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  179-87     Citation Subset:  IM    
Affiliation:
Departamento de Biologia Cellular y Fisiologia, Universidad Autónoma de Barcelona, Bellaterra, Spain.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animals
Animals, Newborn
Cell Nucleolus
Female
Meiosis*
Microscopy, Electron
Oocytes / cytology,  ultrastructure*
Oogenesis
Prophase
Rats
Synaptonemal Complex*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Echocardiographic and color Doppler diagnosis in congenital aneurysm of the mitral-aortic intervalvu...
Next Document:  Mechanism of puf mRNA degradation: the role of an intercistronic stem-loop structure.