中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 中间球海胆、光棘球海胆自繁和杂交后代幼体发育及对高温的反应 大连海洋大学学报 2014 (5) 11-18
Position: Home > Articles > Development and heat responses of larvae self propagated and hybridized from sea urchins Strongylocentrotus intermedius and S. nudus Journal of Dalian Ocean University 2014 (5) 11-18

中间球海胆、光棘球海胆自繁和杂交后代幼体发育及对高温的反应

作  者：
田晓飞;常亚青;张伟杰;经晨晨;亓守冰
单  位：
大连海洋大学农业部北方海水增养殖重点实验室
关键词：
中间球海胆;光棘球海胆;杂交;幼体;高温
摘  要：
对中间球海胆Strongylocentrotus intermedius(Si)和光棘球海胆S.nudus(Sn)进行完全双列杂交,通过对自繁后代(Si♀×Si♂、Sn♀×Sn♂)和杂交子代(Si♀×Sn♂、Sn♀×Si♂)的幼体发育进行观察,详细描述了幼体发育各个阶段的形态特征,并在18、22、26、30℃4个温度下对自繁和杂交子代的受精率、孵化率、各幼体时期的畸形率和生长状况进行了测量和分析。结果表明:杂交海胆的受精率均显著低于自繁海胆(P<0.05),Si♀×Sn♂杂交海胆在18℃时的孵化率与自繁海胆无显著性差异(P>0.05);Si♀×Sn♂杂交海胆幼体形态融合了两种自繁幼体的特征;温度对光棘球海胆自繁和杂交海胆子代的受精率、孵化率均有显著影响(P<0.05),中间球海胆在22℃下的受精率和孵化率最高,而光棘球海胆的最适受精和孵化温度为18℃,Si♀×Sn♂杂交海胆最适受精温度为22℃,而最适孵化温度为18℃;温度对海胆幼体发育的畸形率和生长均有显著影响(P<0.05),3种海胆幼体的最适生长水温均为18℃,Si♀×Sn♂杂交海胆在四腕幼体时期的畸形率最低,体长最小,除在八腕幼体时期畸形率最高外,在六腕幼体和八腕幼体时期的畸形率和生长性状均是介于自繁幼体之间。研究表明,Si♀×Sn♂杂交海胆在胚胎发育早期具有母本的热耐受性和生长劣势,但是随着幼体的生长发育,母性效应逐渐减弱,其在生长方面逐渐体现出父本的生长优势。
译  名：
Development and heat responses of larvae self propagated and hybridized from sea urchins Strongylocentrotus intermedius and S. nudus
作  者：
TIAN Xiao-fei;CHANG Ya-qing;ZHANG Wei-jie;JING Chen-chen;QI Shou-bing;Key Laboratory of Mariculture & Stock Enhancement in North China's Sea,Ministry of Agriculture,Dalian Ocean University;
关键词：
Strongylocentrotus intermedius;;S.nudus;;hybrid;;larva;;high temperature
摘  要：
Larval development was observed and morphological characteristics at each developmental period were described in complete inter-specific,diallel cross and corresponding reciprocal cross in sea urchins Strongylocentrotus intermedius(Si) and S. nudus(Sn)(Si♀ × Si♂,Sn♀ × Sn♂,Si♀ × Sn♂,Sn♀ × Si♂). The rates of fertilization,hatching,and deformity and growth at each period were monitored in the offsprings from the self propagation and hybridization exposed to 18,22,26,and 30 ℃. The results showed that there was significantly lower fertilization rate in inter-specific hybrids than intra-specific offsprings(P < 0. 05) without significant difference in hatching rate between intra-specific offsprings and inter-specific offsprings at 18 ℃(P > 0. 05). Larval hybrids blended morphological traits of both species. The fertilization rate and hatching rate were found to be significantly affected by temperature(P < 0. 05),the maximum fertilization rate and hatching rate in S. intermedius at 22 ℃and the optimal temperature of 18 ℃ for S. nudus. In heterogeneous Si♀ × Sn♂,however,the maximal fertilization rate was observed at 22 ℃ and the maximal hatching rate at 18 ℃. During the larval development period,temperature showed significantly effect on the deformity rate and growth of the sea urchins( P < 0. 05),the optimal temperature of 18 ℃ for all sea urchin larvae. The minimal deformity and the least growth were found in echinopluterus with four-arms in Si♀ × Sn♂,and the mid-deformity rate and growth were observed in the echinopluterus with six and eight arms between inter-specific cross groups,the maximal deformity in the echinopluterus with eight arms. Due to the maternal effects,the Si♀ × Sn♂ offsprings were able to tolerant high temperature in the early embryonic development stages,but showed poor growth along with development period owing to gradual decrease in the maternal effects. The paternal heterosis was gradually reflected in growth.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46