| 菲律宾蛤仔2个壳色品系群体杂交的研究 |
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| 引用本文： | 张跃环,闫喜武,姚托,霍忠明,杨凤,张国范.菲律宾蛤仔2个壳色品系群体杂交的研究[J].南方水产,2008,4(3):27-32. |
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| 作者姓名： | 张跃环 闫喜武 姚托 霍忠明 杨凤 张国范 |
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| 作者单位： | 1. 大连水产学院生命科学与技术学院,辽宁,大连,116023
2. 中国科学院海洋研究所,山东,青岛,266071 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 于2007年10月，以F1代海洋红（R）和斑马蛤（Z）为材料，开展了2个壳色菲律宾蛤仔（Ruditapes philippinarum）品系的群体杂交。试验由RR（R♀×R♂）、ZZ（Z♀×Z♂）、RZ（R♀×Z♂）和ZR（Z♀×R♂）组成。结果表明，2个壳色品系亲贝壳长、重量和产卵量差异显著（P〈0．05）。各试验组卵径、受精率和D形幼虫大小元显著差异（P〉0．05），但杂交组孵化率显著高于相应对照组（P〈0．05）。浮游期间幼虫未表现出明显的生长优势，但表现出一定的存活优势。RZ和ZR的生长优势平均值分别为（1．63±0．81）％和（2．58±0．67）％；生长速度分别为（8．64±0．32）和（8．67±0．31）μm·d^-1，显著高于相应对照组（P〈0．05）；存活优势分别为（10．30±1．92）％和（16．30±1．04）％。室内培育期间稚贝表现出明显的生长、存活优势。RZ、ZR的生长优势平均值分别为（11．25±2．98）％和（20．31±2．10）％；生长速度分别为（9．88±1．45）和（10．79±1．32）μm·d^-1，显著高于相应对照组（P〈0．05），存活优势分别为（40．85±9．90）％和（57．08±11．98）％。
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| 关 键 词： | 菲律宾蛤仔 群体杂交 壳色品系 杂种优势 |
| 文章编号： | 1673-2227-(2008)03-0027-06 |
| 修稿时间： | 2007年12月23 |
Study on population hybridization of two shell color strains of Manila clam Ruditapes philippinarum |
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| ZHANG Yuehuan,YAN Xiwu,YAO Tuo,HUO Zhongming,YANG Feng,ZHANG Guofan.Study on population hybridization of two shell color strains of Manila clam Ruditapes philippinarum[J].South China Fisheries Science,2008,4(3):27-32. |
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| Authors: | ZHANG Yuehuan YAN Xiwu YAO Tuo HUO Zhongming YANG Feng ZHANG Guofan |
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| Institution: | ZHANG Yuehuan , YAN Xiwu , YAO Tuo , HUO Zhongming , YANG Feng , ZHANG Guofan (1. The Institute of Life Science and Technology, Dalian Fisheries University, Dalian 116023, China; 2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China) |
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| Abstract: | The population hybridization was conducted by using clams of two shell color strains “ocean red” （R） ,“zebra” （Z） strains in October of 2007. The experiments was consisted ofRR （R♀×R♂）, ZZ （Z♀×Z♂）, RZ （R♀×Z♂）, ZR （Z♀×R♂） groups. The results showed that difference of shell length, weight and fecundity of parents were significant between two shell color strains （P 〈 0. 05 ）. There were no difference on egg-diameter, fertilized rate and size of D larvae among each experimental groups （P 〉0. 05）. The hatching rates in hybrid groups were higher than in control groups （P 〈0. 05）. At the planktonic stage, survival beterosis was obvious instead of growth heterosis for larvae tested. Survival heterosis were （ 10. 30 ± 1.92 ） % and （ 16. 30 ± 1.04 ） %, respectively for RZ and ZR, and growth heterosis for RZ, ZR were （ 1.63±0. 81 ） % and （2. 58±0. 67） %. Growth rates for RZ, ZR were （ 8. 64 ± 0. 32） and （ 8. 67 ±0. 31 ）μm·d^- 1, respectively （ P 〈 0. 05 ）. At indoor rearing stage, obvious growth and survival beterosis were found. The growth heterosis of RZ, ZR were （ 11.25± 2. 98 ） % and （20. 31 ± 2. 10） %, the growth rates were （ 9. 88 ± 1.45 ） and （ 10. 79± 1.32 ）μm· d^ - 1, and the survival heterosis were （ 40. 85 ± 9. 90） % and （ 57.08 ± 11.98 ） % , respectively. There was no significant difference of survival heterosis between RR and ZZ （ P 〈0. 05 ）. |
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| Keywords: | Ruditapes philippinarum population hybridization shell color strain heterosis |
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