Synaptonemal complex karyotype of zebrafish

被引：47
|
作者：
Wallace, BMN [1 ]
Wallace, H [1 ]
机构：
[1] Univ Birmingham, Sch Biosci, Birmingham B15 2TT, W Midlands, England
来源：
HEREDITY | 2003年 / 90卷 / 02期
关键词：
synaptonemal complex; karyotype; sex chromosomes; zebrafish;
D O I：
10.1038/sj.hdy.6800184
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
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.
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收藏
页码：136 / 140
页数：5
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