BEHAVIOR OF SPERM NUCLEI INCORPORATED INTO PARTHENOGENETIC MOUSE EGGS PRIOR TO THE 1ST CLEAVAGE DIVISION

被引：28

作者：

MALESZEWSKI, M

机构：

[1] Department of Embryology, Institute of Zoology, University of Warsaw, Warsaw

来源：

MOLECULAR REPRODUCTION AND DEVELOPMENT | 1992年 / 33卷 / 02期

关键词：

PARTHENOGENETIC EMBRYO; INVITRO FERTILIZATION; SPERM NUCLEAR DECONDENSATION; DNA SYNTHESIS;

D O I：

10.1002/mrd.1080330215

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

When artificially activated mouse eggs are inseminated in the middle of the first cell cycle, sperm nuclei remain condensed until the first mitosis. During mitosis of the first cleavage division sperm nuclei decondense, subsequently recondense and are passively displaced to the daughter blastomeres. In the 2-cell embryos sperm nuclei form interphase nuclei which are able to replicate DNA and to condense into discrete chromosomes during the following mitotic division. These observations suggest that the mitotic cytoplasm of 1-cell embryos creates similar conditions for the transformation of sperm nuclei into male pronuclei as the cytoplasm of metaphase II oocytes.

引用

页码：215 / 221

页数：7

共 33 条

[1] PRONUCLEAR SYNTHESIS OF DNA IN FERTILIZED AND PARTHENOGENETICALLY ACTIVATED MOUSE EGGS - CYTOPHOTOMETRIC STUDY [J].