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| 基金项目:国家海洋局海洋经济规划实施的科技推进平台与运行项目 |
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| Effect comparation on embryo developing and juvenile metamorphosis of different hybridization groups of sea cucumber Apostichopus japonicus (Selenka) |
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Li Chenlin, Hu Wei, Song Aihuan, Li Qiaochu, Wang Juan, Zhang Yu
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The Mari-culture Institute of Shandong province
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| Different hybridization groups of wild sea cucumber Apostichopus japonicus (Selenka) from Qingdao（Q）、Yanta（Y）、Weihai（W）、Rizhao（R）、Changdao（C） were studied in contrast with their self-breeding groups.By Duncan’s multiple range tests, the rate of hatching、auricularia larvae survivorship、doliolaria apperance and rate of metamorphosis about different groups were compared and analysized. Results showed, in general,the hybridization groups have heterosis over the self-breeding groups, having significant differences at 5% level with the contrast groups.Thereinto, the groups of Y(♀)×Q (♂)and Q(♀)×W(♂) had the best hybridized effects.(Their rate of hatching、auricularia larvae survivorship、doliolaria apperance and rate of metamorphosis is 95.4%、95.2%、20%、93.8%；93.8%、90.1%、15%、91.6% respectly );the groups of Y(♀)×W(♂)、Y(♀)×R(♂) and W(♀)×R(♂) are in-between(the corresponding datas are: 94.2% 、87.2%、12%、91.2%；93.6% 、86.2%、12%、90.1%；96.1%、83.1%、10%、86.7% respectly)；the effect of Q(♀)×C (♂)and W(♀)×C(♂) is unconspicuous(the corresponding datas are: 93.2、%、80.4%、10.5%、80.2%；90.7%、79.3%、9.5%、78.9% respectly). The research can provide important academic reference and practical directive meaning for science research and production in future. |
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