Yield trait improvement of bay scallops following complete diallel crosses between different scallop stocks
文献类型：CNKI期刊论文
| 作者 | Zhang SD(张守都); Li L(李莉); Wu FC(吴富村); Zhang GF(张国范) |
| 发表日期 | 2014-01-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | bay scallop hybridization growth heterosis |
| 英文摘要 | This study describes the complete diallel hybridization between newly introduced bay scallop stock(W) from Canada and local commercial stock(D) grown under laboratory conditions, in China. Larval survival and growth during all life stages(larvae, spat, and adult) were compared among hybrid(DW, WD) and purebred(DD, WW) populations. Signifi cant heterosis was detected for survival during the larval stage(>1% of the mid-parent values). The mean heterosis( H m) varied in growth throughout the life span. More than 50% of the H m values were positive and negative in the DW and WD groups, respectively. The infl uence of maternal effects and mating types(intrapopulation vs. interpopulation crosses) on growth for all life stages was not consistent. Larval survival did not differ signifi cantly( P >0.05) with maternal effect or mating type. In the harvest stage, shell length(SL), shell height(SH), shell width(SW), and total weight(TW) were larger in the hybrid compared with the inbred groups. Positive H m values were observed in SL(1.5%), SW(5.8%), and TW(12.3%), and were more signifi cant in the DW groups(6.1%, 4.5%, 6.8%, and 27.2%). These results suggest that hybridization between two geographic populations is a good tool for improving bay scallop growth. However, unstable heterosis between the two populations requires further study. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National High Technology Research and Development Program of China(863 Program)(Nos.2012AA10A410,2010AA10A401) ; the National Natural Science Foundation of China(No.30800842) ; the Mollusc Research and Development Center(No.CARS-48) ; the Taishan Scholar Program of Shandong Province ; the Climbing Program of Taishan Scholars of Shandong Province |
| 卷 | v.32期:01页:3-9 |
| 语种 | 英文; |
| 分类号 | S917.4 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190596]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | InstituteofOceanology,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Zhang SD,Li L,Wu FC,et al. Yield trait improvement of bay scallops following complete diallel crosses between different scallop stocks. 2014. |
入库方式： OAI收割
来源：海洋研究所
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