| 摘要: |
| 为推动中国扇贝养殖业的进一步发展，作者于2008年从秘鲁引进了紫扇贝(Argopecten purpuratus)，尝试将紫扇贝与海湾扇贝(Argopecten irradians irradians)进行杂交，以期培育出具有优势性状的杂交子代。利用引进的紫扇贝与海湾扇贝进行种间杂交，培育出紫扇贝(雌)×海湾扇贝(雄)杂交扇贝。实验证明紫扇贝的卵子与海湾扇贝的精子可正常受精，受精卵发育正常。杂交扇贝的生长速度在幼虫阶段和成体阶段均快于海湾扇贝。至收获时，杂交贝比海湾扇贝平均壳高、壳长和壳宽分别大27.3%，25.2%和19.3%，体质量增加107.0%,杂种优势明显。
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| 关键词: 紫扇贝(Argopecten purpuratus) 海湾扇贝(Argopecten irradians irradians) 种间杂交 杂种优势 |
| DOI： |
| 分类号: |
| 基金项目:农业部“引进国外先进农业技术”(948)项目(2008Z031) |
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| Inter-specific hybridization between Argopecten purpuratus and Argopecten irradians irradians |
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WANG Chun-de,LIU Bao-zhong,LI Ji-qiang,LIU Sheng-ping
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| Abstract: |
| The purple scallop (Argopecten purpuratus) and the bay scallop (Argopecten irradians irradians) are all fast-growing Argopecten scallops. The bay scallop has been introduced into China 1980 s and has now developed into a large industry in China. Now the authors reported the introduction of purple scallops from Peru into China and the inter-specific hybridization between the bay scallopnms and purple scallops. In this study, the hybrids were produced by hybridizing A. purpuratus eggs with A. irradians irradians sperm. The results showed that the A. purpuratus eggs can be fertilized with A. irradians irradians sperm, and the resulted embryos can develop normally. Faster growth was observed in the hybrids compared with the pure-bred bay scallops during both the larval and adult stages. The average shell height, shell length, shell width and whole weight of the hybrids are 27.3%, 25.2%, 19.3%, and 107.0% larger than that of the pure-bred bay scallops, indicating a significant heterosis in the hybrids.
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| Key words: Argopecten purpuratus Argopecten irradians irradians inter-specific hybridization hetereosis |
