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megaspore

Term Information

Accession
PO:0020019
Name
megaspore
Ontology
plant_anatomy
Synonyms
megaspora (Spanish, exact), 大胞子 (Japanese, exact), macrospore (related), Poaceae megaspore (narrow), Zea megaspore (narrow)
Alternate IDs
PO:0006464, PO:0006494
Definition
The larger, in general, of the two kinds of spores produced after meiosis in the life cycle of a heterosporous plant, and on germination giving rise to the female gametophyte (embryo sac). Source: APweb:Glossary
Comment
If you are annotating to this structure for Zea mays or other grasses, please also add an annotation to the corresponding floret type. Choose the most specific term possible from: spikelet floret (PO:0009082), ear floret (PO:0006354), upper floret of pedicellate spikelet of ear (PO:0006350), upper floret of sessile spikelet of ear (PO:0006352).
Subset
CL
Feedback
Comments, changes to terms, or requests for new ontology terms can be made at PO issue tracker on GitHub.

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Parents of megaspore (PO:0020019)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
megaspore [is_a relation] is_a  plant spore (PO:0025017)
Children of megaspore (PO:0020019)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
degenerate megaspore (PO:0000245) [is_a relation] is_a  megaspore
functional megaspore (PO:0000244) [is_a relation] is_a  megaspore
embryo sac (PO:0025074) [RO:0002202 relation] RO:0002202  megaspore
tetrad of megaspores (PO:0025227) [BFO:0000051 relation] BFO:0000051  megaspore
FNA
6e5937eb-f512-4bd3-9865-06606218863f