三倍体大黄鱼的诱导及其对生长 、 性腺发育的影响.PDF

第 28 卷第 6 期 水 　产 　学 　报 Vol . 28 , N o . 6 　 　　　　　　　　　　　 　 　　　　　　　　　 2004 年 12 月 　 J OURNAL OF FISHERIES OF CHINA Dec . , 2004 　 文章编号 :1000 - 06 15 (2004) 06 - 0728 - 05 ·研究简报 · 三倍体大黄鱼的诱导及其对生长 、性腺发育的影响 林 　琪1 ,2 , 　吴建绍2 ( 1. 厦门大学海洋与环境学院, 福建 厦门　361005 ; 2 . 福建省水产研究所 ,福建 厦门　3610 12) 关键词 :大黄鱼; 三倍体; 生长; 性腺发育 中图分类号 :S917 　　　　　　　文献标识码 :A Induction of triploidy and its effect on growth and gonadal development in Pseudosciaena crocea L IN Qi 1 ,2 , WU J ianshao2 ( 1. College of Oceanograp hy and Enviromental Science of X iamen University , X iamen 　361005 , China ; 2 . Fuj ian Fisheries Research Institute , X iamen 　3610 12 , China) - 2 Abstract : Triploid was induced by hydrostatic pressure in Pseudosciaena crocea . Pressure shock of 500kg ·cm was administered to eggs f or 2 min at 3 min after fertilization . The triploid rate was 92 . 1 % . The nucleus diameters (maj or axes) and volumes of erythrocytes in triploid were measured resp ectively 1. 28 and 1. 70 times those in diploid . The triploid growth rates (body length , weight) were not significantly different comp ared to the diploid controls . The gonadal develop ment was studied through tissue section . The result showed that the triploids had undevelop ed gonads and were sterile . Key words :Pseudosciaena crocea ; triploid ; growth ; gonadal