奥利亚罗非鱼与鳜杂交的受精细胞学及胚胎发育研究  

STUDY ON FERTILIZATION CYTOLOGY AND EMBRYONIC DEVELOPMENT IN HYBRIDIZATION BETWEEN OREOCHROMIS AUREA(♀) AND SINIPERCA CHUATSI(♂)

作　　者：唐永凯[1] 杨弘[1] 吴婷婷[1] 贾永义[1] 夏德全[1] 

机构地区：[1]中国水产科学研究院淡水渔业研究中心农业部水生动物遗传育种和养殖生物学重点开放实验室,无锡214081

出　　处：《水生生物学报》2006年第5期559-562,共4页Acta Hydrobiologica Sinica

基　　金：国家自然科学基金项目(30371116);国家"十五"攻关专题(2004BA526B0110);"863"课题(2001AA243061)资助

摘　　要：通过对奥利亚罗非鱼(♀)和鳜(♂)杂交的受精细胞学观察发现:异源精子入卵后产生星光,并核化成雄性原核,与雌原核互相靠近,接触最终完全融合为一个合子核,合子核继续分裂。分析比较了奥利亚罗非鱼,鳜以及奥鳜杂种胚胎发育情况,发现杂种胚胎的发育速度在囊胚早期与母本奥利亚罗非鱼基本一致,到囊胚后期速度有所减慢,但与鳜胚胎发育速度相差很大。这表明奥利亚罗非鱼和鳜虽属不同科间的远缘杂交,但有正常的受精细胞学程序和常规的细胞分裂(卵裂)方式。Tilapia are native to Africa,but have been introduced into many countries around the world.They are disease-resistant,reproduce easily,eat a wide variety of foods and tolerate poor water quality with low dissolved oxygen levels,but are not able to bear low temperature.Mandarin fish,a carnivore freshwater fish,is popular with the advantage of rich nutrition and delicious tasty.So we want to obtain a new breed through hybridization between Oreochromis aurea(♀)and Siniperca chuatsi(♂).And we finally got some p...

关 键 词：奥利亚罗非鱼 鳜 远缘杂交 受精细胞学 胚胎发育 

分 类 号：S917.4[农业科学—水产科学]