Synaptonemal complex analysis in oocytes and spermatocytes of threespine stickleback Gasterosteus aculeatus (Teleostei, Gasterosteidae)

被引：11

作者：

Cuñado, N

Barrios, J

San Miguel, E ^{[1
]}

Amaro, R

Fernández, C

Hermida, M

Santos, JL

机构：

[1] Univ Santiago de Compostela, Area Genet, Dept Biol Fundamental, Lugo 27002, Spain

[2] Univ Complutense, Fac Biol, Dept Genet, E-28040 Madrid, Spain

来源：

GENETICA | 2002年 / 114卷 / 01期

关键词：

fish; Gasterosteus aculeatus; meiosis; stickleback; synaptonemal complex;

D O I：

10.1023/A:1014685114092

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

A surface-spreading synaptonemal complex (SC) technique was employed to analyze spermatocytes and oocytes of stickleback, Gasterosteus aculeatus, in order to visualize the process of chromosome synapsis. The mean SC length was 150 +/- 18 mum in three males and 143 +/- 12 mum in one female analyzed. A representative SC karyotype with 21bivalents was also presented. Each SC had lateral elements of equal length. No bivalent displaying the atypical synaptic behaviour which is often associated with heteromorphic sex chromosomes was observed neither in males nor in the female analyzed.

引用

页码：53 / 56

页数：4

共 17 条

[1] Divergent sexual selection enhances reproductive isolation in sticklebacks [J].