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    
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.
R Pujol; M Garcia; L Freixa; J Egozcue
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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    
Departamento de Biologia Cellular y Fisiologia, Universidad Autónoma de Barcelona, Bellaterra, Spain.
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MeSH Terms
Animals, Newborn
Cell Nucleolus
Microscopy, Electron
Oocytes / cytology,  ultrastructure*
Synaptonemal Complex*

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