| Analysis of the early development in first and backcross generations between Paralichthys olivaceus and Paralichthys dentatus | |
| Sui, Juan2; Liu, Qinghua1; He, Tao1,2; Xiao, Zhizhong1; Xu, Shihong1; Ma, Daoyuan1; Xiao, Yongshuang1; Lin, Fan1,2; Li, Jun1 | |
| 2011-11-02 | |
| 发表期刊 | AFRICAN JOURNAL OF BIOTECHNOLOGY
 |
| ISSN | 1684-5315 |
| 卷号 | 10期号:68页码:15438-15443 |
| 文章类型 | Article |
| 摘要 | This study investigated the performance difference of reciprocal hybrids and backcrosses between Paralichthys olivaceus and Paralichthys dentatus. The fertilization and hatching rates, combined fitness measure, early developmental characteristics and chromosome number were analyzed. The crosses of P. olivaceus female x P. dentatus male (F1), F1 female x P. olivaceus male and F1 female x P. dentatus male could normally fertilize (the fertilization rate: 93.2 to 97.7%), hatch (the hatching rate: 84.4 to 93.1%) and develop during pre-larvae stage. However, the fertilization rate (41.7%) and combined fitness measure (0.327) of P. dentatus female x P. olivaceus male was significantly reduced compared with other crosses. And the embryos of P. dentatus female x P. olivaceus male hatched out with flexural spine and poor vitality and died within 3 days post hatching. In addition, the result of cytogenetics analysis showed two chromosomes were missing in P. dentatus female x P. olivaceus male, which provided evidence of postzygotic barriers in the two species. The results would be useful for better understanding the genetic phenomena of the distant hybridization in fish species.; This study investigated the performance difference of reciprocal hybrids and backcrosses between Paralichthys olivaceus and Paralichthys dentatus. The fertilization and hatching rates, combined fitness measure, early developmental characteristics and chromosome number were analyzed. The crosses of P. olivaceus female x P. dentatus male (F1), F1 female x P. olivaceus male and F1 female x P. dentatus male could normally fertilize (the fertilization rate: 93.2 to 97.7%), hatch (the hatching rate: 84.4 to 93.1%) and develop during pre-larvae stage. However, the fertilization rate (41.7%) and combined fitness measure (0.327) of P. dentatus female x P. olivaceus male was significantly reduced compared with other crosses. And the embryos of P. dentatus female x P. olivaceus male hatched out with flexural spine and poor vitality and died within 3 days post hatching. In addition, the result of cytogenetics analysis showed two chromosomes were missing in P. dentatus female x P. olivaceus male, which provided evidence of postzygotic barriers in the two species. The results would be useful for better understanding the genetic phenomena of the distant hybridization in fish species. |
| 关键词 | Paralichthys Olivaceus Paralichthys Dentatus Early Development Inter-specific Hybridization Backcross |
| 学科领域 | Biotechnology & Applied Microbiology |
| DOI | 10.5897/AJB11.581 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000298551400028 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/11995 |
| 专题 | 海洋生物技术研发中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Ctr Biotechnol R&D, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sui, Juan,Liu, Qinghua,He, Tao,et al. Analysis of the early development in first and backcross generations between Paralichthys olivaceus and Paralichthys dentatus[J]. AFRICAN JOURNAL OF BIOTECHNOLOGY,2011,10(68):15438-15443. |
| APA | Sui, Juan.,Liu, Qinghua.,He, Tao.,Xiao, Zhizhong.,Xu, Shihong.,...&Li, Jun.(2011).Analysis of the early development in first and backcross generations between Paralichthys olivaceus and Paralichthys dentatus.AFRICAN JOURNAL OF BIOTECHNOLOGY,10(68),15438-15443. |
| MLA | Sui, Juan,et al."Analysis of the early development in first and backcross generations between Paralichthys olivaceus and Paralichthys dentatus".AFRICAN JOURNAL OF BIOTECHNOLOGY 10.68(2011):15438-15443. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Analysis of the earl（1957KB） | 限制开放 | -- | 浏览 | |||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论