name: embryo sac development
The contents of this box are automatically generated. You can help by adding information to the "Notes"
def: "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." [GOC:mtg_plant, GOC:tb]
synonym: "female gametophyte development" EXACT 
is_a: GO:0048229 ! gametophyte development
Gene Ontology Home
See Help:References for how to manage references in GONUTS.
This category has the following 2 subcategories, out of 2 total.
Pages in category "GO:0009553 ! embryo sac development"
The following 32 pages are in this category, out of 32 total.
Jump to pages starting with: M O P T