| BROADENING OF THE GENETIC BASIS OF THE ATLANTIC BAY SCALLOP ARGOPECTEN IRRADIANS AFTER INTERSPECIFIC HYBRIDIZATION AND BACKCROSSING | |
| Zhang, Shoudu1,2; Li, Li1; Wu, Fucun1; Zhang, Guofan1; Zhang, GF | |
| 2013-12-01 | |
| 发表期刊 | JOURNAL OF SHELLFISH RESEARCH
 |
| ISSN | 0730-8000 |
| 卷号 | 32期号:3页码:709-718 |
| 文章类型 | Article |
| 摘要 | The growth characteristics and morphological features of the Atlantic bay scallop (Argopecten irradians irradians Lamarck), Chilean scallop (Argopecten purpuratus Lamarck), F1 hybrids of these species, and the offspring produced via 2 cycles of backcrossing between hybrid populations and the Atlantic bay scallop were examined to determine the feasibility of broadening the genetic basis of the bay scallop. Bidirectional fertilization and successful hatching were observed in F1 hybrids. Notable heterosis (i.e., >1% of the midparent values) was detected in growth and survival throughout the whole life span of the scallops. The F1 hybrids showed universal feminization, but with low fertilization and hatching rates observed in backcrosses with bay scallops (partial sterility). Hematoxylin-eosin staining of paraffin sections of the feminine gonads of the hybrids was performed in this study. The male gonad was found to be vestigial, without any active sperm, whereas the female gonad was well developed and presented abundant eggs with a normal appearance. Increasing fertilization and hatching rates were observed in the second generation of backcrosses between hybrid populations and bay scallops compared with the first backcrosses. At the same time, a growth advantage and low temperature resistance were regained in the offspring produced from backcrossed breeding. This study describes a promising way to broaden the genetic basis of bay scallops with the aim of improving the growth characteristics of cultured scallop stocks.; The growth characteristics and morphological features of the Atlantic bay scallop (Argopecten irradians irradians Lamarck), Chilean scallop (Argopecten purpuratus Lamarck), F1 hybrids of these species, and the offspring produced via 2 cycles of backcrossing between hybrid populations and the Atlantic bay scallop were examined to determine the feasibility of broadening the genetic basis of the bay scallop. Bidirectional fertilization and successful hatching were observed in F1 hybrids. Notable heterosis (i.e., >1% of the midparent values) was detected in growth and survival throughout the whole life span of the scallops. The F1 hybrids showed universal feminization, but with low fertilization and hatching rates observed in backcrosses with bay scallops (partial sterility). Hematoxylin-eosin staining of paraffin sections of the feminine gonads of the hybrids was performed in this study. The male gonad was found to be vestigial, without any active sperm, whereas the female gonad was well developed and presented abundant eggs with a normal appearance. Increasing fertilization and hatching rates were observed in the second generation of backcrosses between hybrid populations and bay scallops compared with the first backcrosses. At the same time, a growth advantage and low temperature resistance were regained in the offspring produced from backcrossed breeding. This study describes a promising way to broaden the genetic basis of bay scallops with the aim of improving the growth characteristics of cultured scallop stocks. |
| 关键词 | Bay Scallop Chilean Scallop Hybridization Partially Sterile Backcross Argopecten Irradians |
| 学科领域 | Fisheries ; Marine & Freshwater Biology |
| DOI | 10.2983/035.032.0312 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Fisheries ; Marine & Freshwater Biology |
| WOS类目 | Fisheries ; Marine & Freshwater Biology |
| WOS记录号 | WOS:000331554700012 |
| WOS关键词 | HYBRID VELIGER LARVAE ; BROWN TROUT ; OUTBREEDING DEPRESSION ; PERUVIAN SCALLOP ; PACIFIC OYSTERS ; SALMO-TRUTTA ; GROWTH-RATE ; HETEROSIS ; POPULATIONS ; CROSSES |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/16686 |
| 专题 | 海洋生物技术研发中心 |
| 通讯作者 | Zhang, GF |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, Shoudu,Li, Li,Wu, Fucun,et al. BROADENING OF THE GENETIC BASIS OF THE ATLANTIC BAY SCALLOP ARGOPECTEN IRRADIANS AFTER INTERSPECIFIC HYBRIDIZATION AND BACKCROSSING[J]. JOURNAL OF SHELLFISH RESEARCH,2013,32(3):709-718. |
| APA | Zhang, Shoudu,Li, Li,Wu, Fucun,Zhang, Guofan,&Zhang, GF.(2013).BROADENING OF THE GENETIC BASIS OF THE ATLANTIC BAY SCALLOP ARGOPECTEN IRRADIANS AFTER INTERSPECIFIC HYBRIDIZATION AND BACKCROSSING.JOURNAL OF SHELLFISH RESEARCH,32(3),709-718. |
| MLA | Zhang, Shoudu,et al."BROADENING OF THE GENETIC BASIS OF THE ATLANTIC BAY SCALLOP ARGOPECTEN IRRADIANS AFTER INTERSPECIFIC HYBRIDIZATION AND BACKCROSSING".JOURNAL OF SHELLFISH RESEARCH 32.3(2013):709-718. |
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