Genetical study on the parthenogenesis in Laminaria japonica

作     者：Dai Jixun, Cui Jingjin, Ou Yulin and Fang Zongxi Department of Biology, Ocean University of Qingdao, Qingdao 266003, China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：1993年第12卷第2期

页      面：295-298页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

主　　题：Laminaria japonica parthenogenesis Chromosome doubling 

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.