| 两个地理群体香港牡蛎(Crassostrea hongkongensis)杂交子代早期生长发育的杂种优势研究 |
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| 引用本文： | 官俊良,张跃环,苏家齐,肖述,张明,李琼珍,喻子牛.两个地理群体香港牡蛎(Crassostrea hongkongensis)杂交子代早期生长发育的杂种优势研究[J].海洋与湖沼,2016,47(1):182-187. |
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| 作者姓名： | 官俊良 张跃环 苏家齐 肖述 张明 李琼珍 喻子牛 |
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| 作者单位： | 广西大学,中国科学院南海海洋研究所,中国海洋大学,中国科学院南海海洋研究所,广西大学亚热带农业生物资源保护与利用国家重点实验室,广西水产科学研究院,中国科学院南海海洋研究所 |
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| 基金项目： | 国家自然科学(31272658, 31402299); 国家农业产业技术体系建设专项(CARS-48). |
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| 摘 要： | 为探讨不同地理群体香港牡蛎的杂种优势,于2014年5月开展了广东珠海(Z,生长快)和广西茅尾海(M,抗逆性强)群体间的2×2双列杂交,比较了各实验组早期生长、存活优势,并计算了各阶段的杂种优势,实验由2个杂交组MZ(M♀×Z♂)、ZM(Z♀×M♂)和2个自交组MM(M♀×M♂)、ZZ(Z♀×Z♂)组成。结果表明:浮游期间,正交组(MZ)幼虫在9日龄前未表现出生长优势,但表现出一定的存活优势,幼虫大小存在显著的母本效应;12日龄时正交杂种优势5.34。反交组(ZM)幼虫生长和存活都表现出了正杂种优势,但生长优势值逐渐减小,到了12日龄时壳高与自繁组(ZZ)幼虫间差异不显著(P0.05)。室内苗种培育阶段,杂交稚贝表现出明显的生长、存活优势,正交组(MZ)和反交组(ZM)子代的生长优势分别为7.86±3.12、17.47±13.14;存活优势分别为8.33±1.41、2.86±1.08。以上结果说明两个群体香港牡蛎杂交可以产生杂种优势,可为牡蛎杂种优势开发利用提供参考。
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| 关 键 词： | 香港牡蛎 双列杂交 表型性状 杂种优势 |
| 收稿时间： | 3/4/2015 12:00:00 AM |
| 修稿时间： | 2015/4/15 0:00:00 |
HETEROSIS IN EARLY GROWTH STAGE OF HONG KONG OYSTER CRASSOSTREA HONGKONGENSIS HYBRIDIDS FROM TWO GEOGRAPHICAL POPULATIONS |
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| GUAN Jun-Liang,ZHANG Yue-Huan,SU Jia-Qi,XIAO Shu,ZHANG Ming,LI Qiong-Zhen and YU Zi-Niu.HETEROSIS IN EARLY GROWTH STAGE OF HONG KONG OYSTER CRASSOSTREA HONGKONGENSIS HYBRIDIDS FROM TWO GEOGRAPHICAL POPULATIONS[J].Oceanologia Et Limnologia Sinica,2016,47(1):182-187. |
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| Authors: | GUAN Jun-Liang ZHANG Yue-Huan SU Jia-Qi XIAO Shu ZHANG Ming LI Qiong-Zhen and YU Zi-Niu |
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| Institution: | State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources,Animal Reproduction Institute,Guangxi University,Key Laboratory of tropical marine biological resources and ecology,South China Sea Institute of Oceanology,SChinese Academy of Sciences,Key Laboratory of Mariculture Ministry of Education,Fisheries College,Ocean University of China,Key Laboratory of tropical marine biological resources and ecology,South China Sea Institute of Oceanology,SChinese Academy of Sciences,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources,Animal Reproduction Institute,Guangxi University,Key Laboratory of Mariculture, Guangxi Academy of Fishery Science,Key Laboratory of tropical marine biological resources and ecology,South China Sea Institute of Oceanology,SChinese Academy of Sciences |
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| Abstract: | To evaluate early heterosis of Hong Kong oyster Crassostrea hongkongensis between two geographical populations (Z: Zhuhai, M: Maoweu Sea), the 2×2 diallel crosses was conducted in May 2014, which including two self groups (MM, ZZ) and two reciprocal crosses (MZ, ZM). Results showed that there was no growth heterosis before 6 days, but the positive heterosis was observed during 9-12 days for MZ group with survival heterosis. However, the positive heterosis of growth and survival ability appeared for ZM group during the plantonic stage. At spat stage, the positive single growth and survival heterosis was 19.03±6.07, 4.47±0.48 for MZ group, and 7.31±9.61, 6.82±2.43 for ZM group, respectively. Above results indicates that heterosis can produce by different populations, and they will provide theory and practice of utilization for heterosis of Hong Kong oyster. |
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| Keywords: | Crassostrea hongkongensis diallel crosses phenotypic trait heterosis |
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