Analysis for the dorsalization potency of the animal blastomeres of the 16 cell stage Xenopus embryo  

作　　者：Qinghua Tao Xiaoyan Ding 

机构地区：[1]Chinese Acad Sci, Shainghai Inst Cell Biol, Shanghai 200031, Peoples R China

出　　处：《Chinese Science Bulletin》1999年第6期538-540,共3页

摘　　要：The derso-ventral axis of Xenopus embryo is established after fertilization. Blastula stage blastomeres acquire different identities as they have inherited different maternal materials which distribute radial symmetrically along the animal vegetal aixs in the full-grown oocyte, and are rearranged by the cortical rotation triggered by fertilization. The vegetal blastomeres demonstrate the different dorsalization potencies in the previous transplantation experiments. The data of blastomere explanting and RT-PCR analyzing indicate that the dorsal ventral bias also exists among the animal blastomeres even during the early blastula stage.The dorso-ventral axis ofXenopus embryo is established after fertilization. Blastula stage blastomeres acquire different identities as they have inherited different maternal materials which distribute radial symmetrically along the animal vegetal aixs in the full-grown oocyte, and are rearranged by the cortical rotation triggered by fertilization. The vegetal blastmeres demonstrate the different dorsalization potencies in the previous transplantation experiments. The data of blastomere explanting and RT-PCR analyzing indicate that the dorsal ventral bias also exists among the animal blastomeres even during the early blastula stage.

关 键 词：XENOPUS embryo dorso-ventral axis BLASTOMERE EXPLANTATION gene expression RT-PCR. 

分 类 号：Q954.4[生物学—动物学]