Planteome: Term Details for "megagametogenesis" (GO:0009561)

Term Information

Accession: GO:0009561
Name: megagametogenesis
Ontology: biological_process
Synonyms: embryo sac development from the megaspore, megagametophyte nucleus division
Alternate IDs: None
Definition: 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. Source: GOC:mtg_plant, GOC:jl
Comment: None
History: See term history for GO:0009561 at QuickGO
Subset: None
Related: Link to all annotated objects annotated to megagametogenesis.; Link to all direct and indirect annotations to megagametogenesis.; Link to all direct and indirect annotations download (limited to first 10,000) for megagametogenesis.
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BFO:0000001 entity
BFO:0000003 occurrent
BFO:0000015 process
GO:0008150 biological_process
GO:0032502 developmental process
GO:0048856 anatomical structure development
GO:0032501 multicellular organismal process
GO:0007275 multicellular organism development
GO:0048229 gametophyte development
GO:0009553 embryo sac development
GO:0009561 megagametogenesis
GO:0055045 antipodal cell degeneration
GO:0009557 antipodal cell differentiation
GO:0009558 embryo sac cellularization
GO:0009559 embryo sac central cell differentiation
GO:0009560 embryo sac egg cell differentiation
GO:0048314 embryo sac morphogenesis
GO:0009562 embryo sac nuclear migration
GO:0009563 synergid differentiation

Parents of megagametogenesis (GO:0009561)

subject	relation	object
megagametogenesis	BFO:0000050	embryo sac development (GO:0009553)
megagametogenesis	is_a	multicellular organismal process (GO:0032501)

Children of megagametogenesis (GO:0009561)

subject	relation	object
embryo sac morphogenesis (GO:0048314)	BFO:0000050	megagametogenesis
embryo sac central cell differentiation (GO:0009559)	BFO:0000050	megagametogenesis
antipodal cell differentiation (GO:0009557)	BFO:0000050	megagametogenesis
antipodal cell degeneration (GO:0055045)	BFO:0000050	megagametogenesis
embryo sac nuclear migration (GO:0009562)	BFO:0000050	megagametogenesis
embryo sac cellularization (GO:0009558)	BFO:0000050	megagametogenesis
synergid differentiation (GO:0009563)	BFO:0000050	megagametogenesis
embryo sac egg cell differentiation (GO:0009560)	BFO:0000050	megagametogenesis

Wikipedia: Megagametogenesis