...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Ichthyology >Chromosome set manipulations and hybridization experiments in gilthead seabream (Sparus aurata). II. Assessment of diploid and triploid hybrids between gilthead seabream and red seabream (Pagrus major)
【24h】

Chromosome set manipulations and hybridization experiments in gilthead seabream (Sparus aurata). II. Assessment of diploid and triploid hybrids between gilthead seabream and red seabream (Pagrus major)

机译：金头鲷（Sparus aurata）中的染色体组操作和杂交实验。二。评估金头鲷和红鲷（Pagrus major）的二倍体和三倍体杂种

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The experiments were designed to evaluate the suitability for mariculture of the diploid and triploid hybrids of gilthead seabream Sparus aurata and red seabream Pagrus major. both of which are members of the Sparidae family,. Performance testing of the hybrids was carried out in comparison with the parental species under the same controlled environment, The reciprocal diploid hybrids as well as the triploid hybrid did not exhibit any significant growth advantage over diploid parental species either before or after sexual maturity. The adults, both reciprocal diploid hybrids and triploid hybrid (female S. aurata X male P. major). were clearly immature and had only vestigial gonads: neither ovaries nor released milts were observed. Histological examination of the gonads, carried Out during associated periods of the first and second maturation Cycles of the parental species, showed that all the hybrids were completely sterile, Despite their sterility, the growth of the hybrids did not display any positive effect. and for this reason their commercial culture appears to be questionable. On the other hand. the use of sterilization through hybridization and chromosome set manipulation may be important when there is a need to restrict the ecological impact on a wild population.
机译：设计该实验是为了评估金头鲷鱼Sparus aurata和红鲷鱼Pagrus major的二倍体和三倍体杂种在海水养殖中的适宜性。他们都是Sparidae家族的成员。在相同的受控环境下，与亲本进行比较，对杂种进行性能测试。在性成熟之前或之后，互易二倍体杂种以及三倍体杂种与二倍体亲本相比没有表现出任何显着的生长优势。成虫，互为二倍体杂种和三倍体杂种（雌性S. aurata X雄性P. major）。明显不成熟，只有残留的性腺：未观察到卵巢或释放的虫。在亲本物种的第一个和第二个成熟周期的相关时期进行的性腺组织学检查显示，所有杂种都完全不育，尽管它们不育，杂种的生长也没有表现出任何积极作用。因此，他们的商业文化似乎值得商question。另一方面。当需要限制对野生种群的生态影响时，通过杂交和染色体组操作进行灭菌可能很重要。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号