YRC Logo
PROTEIN SEARCH:
Descriptions Names[Advanced Search]

The process whose specific outcome is the progression of the embryo sac over time, from its formation to the mature structure. The process begins with the meiosis of the megasporocyte to form four haploid megaspores. Three of the megaspores disintegrate, and the fourth undergoes mitosis giving rise to a binucleate syncytial embryo sac. The two haploid nuclei migrate to the opposite poles of the embryo sac and then undergo two rounds of mitosis generating four haploid nuclei at each pole. One nucleus from each set of four migrates to the center of the cell. Cellularization occurs, resulting in an eight-nucleate seven-celled structure. This structure contains two synergid cells and an egg cell at the micropylar end, and three antipodal cells at the other end. A binucleate endosperm mother cell is formed at the center. The two polar nuclei fuse resulting in a mononucleate diploid endosperm mother cell. The three antipodal cells degenerate. A biological process whose specific outcome is the progression of an integrated living unit: an anatomical structure (which may be a subcellular structure, cell, tissue, or organ), or organism over time from an initial condition to a later condition. Migration of one of the four nuclei at each pole of the eight-nucleate embryo sac, to the center of the cell. The directed movement of the nucleus to a specific location within a cell. The directed movement of the nucleus. Migration of the nuclei of the two-nucleate embryo sac to opposite poles of the cell. The directed movement of an embryo sac nucleus to the pole or center of the cell. The process whose specific outcome is the progression of the embryo sac over time, from its formation as the megaspore to the mature structure. The process begins when three of the four haploid megaspores disintegrate, and the fourth undergoes mitosis giving rise to a binucleate syncytial embryo sac. The two haploid nuclei migrate to the opposite poles of the embryo sac and then undergo two rounds of mitosis generating four haploid nuclei at each pole. One nucleus from each set of four migrates to the center of the cell. Cellularization occurs, resulting in an eight-nucleate seven-celled structure. This structure contains two synergid cells and an egg cell at the micropylar end, and three antipodal cells at the other end. A binucleate endosperm mother cell is formed at the center.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: embryo sac nuclear migration
Acc: GO:0009562
Aspect: Biological Process
Desc: The directed movement of an embryo sac nucleus to the pole or center of the cell.
Synonyms:
  • female gametophyte nuclear migration
  • megagametophyte nucleus migration
  • megagametophyte nuclear migration
  • embryo sac nucleus migration
  • female gametophyte nucleus migration
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 0


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0009562 - embryo sac nuclear migration (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle