Synaptonemal complex karyotype of zebrafish.
- Resource Type
- Academic Journal
- Authors
- Wallace BM; School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.; Wallace H
- Source
- Publisher: Nature Publishing Group Country of Publication: England NLM ID: 0373007 Publication Model: Print Cited Medium: Print ISSN: 0018-067X (Print) Linking ISSN: 0018067X NLM ISO Abbreviation: Heredity (Edinb) Subsets: MEDLINE
- Subject
- Language
- English
- ISSN
- 0018-067X
Meiotic cells of zebrafish have been prepared to show synaptonemal complexes (SCs) by light and electron microscopy. Completely paired SCs from both spermatocytes and oocytes were measured to produce an SC karyotype. The SC karyotype resembles the somatic karyotype of zebrafish and has no recognisable sex bivalent. Measurements of total SC length indicate that SCs grow longer and develop centromeres during pachytene. Oocytes consistently have longer SCs than spermatocytes, presumably correlated with the reported higher recombination frequency in females than in males.