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当前位置: 首页 > 文章 > 近交对中间球海胆受精率、孵化率和幼体发育的影响 大连海洋大学学报 2013,28 (5) 445-449
Position: Home > Articles > Effect of inbreeding on fertility rate,hatchability and larva development of sea urchin Strongylocentrotus intermedius Journal of Dalian Ocean University 2013,28 (5) 445-449

近交对中间球海胆受精率、孵化率和幼体发育的影响

作  者：
周海森;罗世滨;张伟杰;高琳琳;赵冲;常亚青
单  位：
大连海洋大学农业部北方海水增养殖学重点实验室
关键词：
中间球海胆;近交;幼体发育
摘  要：
通过构建不同近交水平的海胆群组,即半同胞近交组(H组,F=0.125)、全同胞近交组(F组,F=0.25)和对照组(C组,F=0),研究了近交对中间球海胆Strongylocentrotus intermedius受精、孵化和幼体发育阶段的影响。结果表明:近交对海胆的受精率、孵化率和四腕幼体的畸形率均无显著影响(P>0.05);不同近交水平的四腕、六腕和八腕幼体体长均表现为H组>C组>F组,体宽表现为无规律性;六腕幼体的胃长和胃宽均为F组>C组>H组,八腕幼体的胃长和胃宽均为C组>H组>F组。研究表明,一定近交水平(F=0.25)的中间球海胆的受精、孵化,以及变态前幼体的体长、体宽均没有出现明显的近交衰退,但幼体胃长和胃宽的近交衰退现象比较明显。
译  名：
Effect of inbreeding on fertility rate,hatchability and larva development of sea urchin Strongylocentrotus intermedius
作  者：
ZHOU Hai-sen;LUO Shi-bin;ZHANG Wei-jie;GAO Lin-lin;ZHAO Chong;CHANG Ya-qing;Key Laboratory of Mariculture & Stock Enhancement in North China's Sea,Ministry of Agriculture,Dalian Ocean University;
关键词：
Strongylocentrotus intermedius;;inbreeding;;larva development
摘  要：
In the present study,we investigated the effects of inbreeding on fertility rate,hatchability and larva development of sea urchin Strongylocentrotus intermedius by establishing three inbreeding level( F = 0,0.125,0.25)groups( C,H and F).The results showed that the influence of inbreeding on fertility rate,hatchability and aberration rate of four arms larva were not significant( P > 0.05).The order of body length of larvae with four-arms,six-arms and eight-arms at the different inbreeding levels was ranged as H group > C group > F group.The change in body width has no remarkable regularity.The order of length and width of stomach in six arms larvae was ranged as F group > C group > H group.The length and width of stomach in eight arms larvae was expressed as C group > H group > F group.The results showed that the inbreeding level of F = 0.25 was not harmful to the fertility rate,hatchability and larva development of the sea urchin Strongylocentrotus intermedius except the development of stomach.

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