| 摘要: |
| 以2014年构建的壳金长牡蛎（Crassostrea gigas）全同胞家系为亲本，通过近交和设置对照组的方法，研究了近交对壳金长牡蛎家系幼虫期与稚贝期生长和存活的影响。结果表明，在整个实验期间，壳金F1家系的壳高、壳长和存活率均小于对照组。壳金F1家系的壳高和壳长仅在1日龄、190日龄与对照组差异不显著（P>0.05），存活率仅在20日龄时与对照组差异显著（P<0.05）。幼虫期，壳金F1家系壳高的近交衰退率范围为0.85%-13.70%，壳长的近交衰退率范围为0.75%-10.83%，存活率的近交衰退范围为4.24%-27.44%。稚贝期，壳金F1家系壳高的近交衰退率范围为6.16%-9.90%，壳长的近交衰退率范围为1.76%-14.21%，存活率的近交衰退范围为1.92%-4.18%。 |
| 关键词: 长牡蛎 壳金F1 家系 近交 生长 存活 幼虫 稚贝 |
| DOI：10.11693/hyhz20160300057 |
| 分类号: |
| 基金项目:泰山学者种业计划专家项目；农业科技成果转化资金项目，2014GB2B020029号；山东省科技发展计划项目，2014GHY115002号。 |
附件 |
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| EFFECTS OF INBREEDING ON GROWTH AND SURVIVAL OF LARVAL AND JUVENILE GOLDEN-SHELL PACIFIC OYSTER (CRASSOSTREA GIGAS) |
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XU Cheng-Xun, LI Qi, ZHANG Jing-Xiao, KONG Ling-Feng
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The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
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| Abstract: |
| We established 10 inbreeding families by first generation full-sib mated with golden-shell Pacific oysters (F1) as test group, and 10 full-sib families mated with wild Pacific oysters as the control. In growth traits and survival rate, the golden shell F1 had smaller shell height, shell length and survival rate than those of the control during the larval and juvenile stages. The shell height and length were significantly different among the two groups (P<0.05), except for those on day 1 and day 190 as revealed in one-way ANOVA, while the survival rates were significantly smaller than the control group (P<0.05). In the larval stage, the inbreeding depression of shell height, shell length, and survival rate of golden-shell F1 families ranged 0.85%-13.70%, 0.75%-10.83%, and 4.24%-27.44%, respectively. In the juvenile stage, the inbreeding depression of the shell height, shell length, and survival rate of golden-shell F1 families varied from 6.16% to 9.90%, 1.76% to 14.21%, and 1.92% to 4.18%, respectively. |
| Key words: Pacific oyster golden shell F1 families inbreeding growth survival larval spat |
