| Genetical study on the parthenogenesis in Laminaria japonica |
| |
| 作者姓名： | Dai Jixun Cui Jingjin Ou Yulin Fang Zongxi |
| |
| 作者单位： | Dai Jixun，Cui Jingjin，Ou Yulin and Fang Zongxi Department of Biology，Ocean University of Qingdao，Qingdao 266003，China |
| |
| 摘 要： | The parthenogenesis and natural doubling of chromosomes in wild type female gametophytes of Laminaria japonica were studied. The results indicate that not all the female gametophytes from the wild type hybrid parent can propagate through parthenogenesis. Most parthenosporophytes can mature, their spores germinate into gametophytes, the latter then developed into female sporophytes. To form these parthenosporophytes the natural doubling of chromosomes occurred mainly at the first and second cell divisions of the spores. It is thus considered that the parthenogenesis of L. japonica is inheritable and the relative genes link closely with the genes controlling the natural doubling of chromosomes and the female determination.
|
| 关 键 词： | Laminaria japonica parthenogenesis Chromosome doubling |
| 收稿时间： | 7/2/1992 12:00:00 AM |
| 修稿时间： | 1992/9/28 0:00:00 |
Genetical study on the parthenogenesis in Laminaria japonica |
| |
| Dai Jixun,Cui Jingjin,Ou Yulin,Fang Zongxi.Genetical study on the parthenogenesis in Laminaria japonica[J].Acta Oceanologica Sinica,1993,12(2):295-298. |
| |
| Authors: | Dai Jixun Cui Jingjin Ou Yulin and Fang Zongxi |
| |
| Institution: | Department of Biology, Ocean University of Qingdao, Qingdao 266003, China |
| |
| Abstract: | The parthenogenesis and natural doubling of chromosomes in wild type female gametophytes of Laminaria japonica were studied. The results indicate that not all the female gametophytes from the wild type hybrid parent can propagate through parthenogenesis. Most parthenosporophytes can mature, their spores germinate into gametophytes, the latter then developed into female sporophytes. To form these parthenosporophytes the natural doubling of chromosomes occurred mainly at the first and second cell divisions of the spores. It is thus considered that the parthenogenesis of L. japonica is inheritable and the relative genes link closely with the genes controlling the natural doubling of chromosomes and the female determination. |
| |
| Keywords: | Laminaria japonica parthenogenesis Chromosome doubling |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
