pollen development stage

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• PO:0025338 collective plant organ structure development stage
• BFO:0000001 entity
• BFO:0000003 occurrent
•      PO:0009012 plant structure development stage
•      PO:0025527 shoot system development stage
•          PO:0025571 multi-tissue plant structure development stage
•          BFO:0000015 process
•          PO:0025530 reproductive shoot system development stage
•              PO:0007615 flower development stage
•              PO:0025339 plant organ development stage
•              PO:0007033 whole plant development stage
•                  PO:0025585 floral organ formation stage
•                  PO:0025337 life of whole plant stage
•                      PO:0025578 collective phyllome structure development stage
•                      PO:0007600 floral organ differentiation stage
•                      PO:0028003 gametophyte development stage
•                          PO:0007605 androecium development stage
•                          PO:0025602 microgametophyte development stage
•                              PO:0001007 pollen development stage
•                                  PO:0001011 A microsporogenous mass stage
•                                  PO:0001006 B enlarged microsporocyte stage
•                                  PO:0001008 C callose wall formation in pollen mother cells stage
•                                  PO:0001009 D pollen mother cell meiosis stage
•                                  PO:0001029 E tetrad stage
•                                  PO:0001010 F microspore release stage
•                                  PO:0001012 G early unicellular microspore stage
•                                  PO:0001013 H late unicellular microspore stage
•                                  PO:0001014 I first mitotic division stage
•                                  PO:0001059 J bicellular pollen stage
•                                  PO:0001015 K second mitotic division stage
•                                  PO:0001016 L mature pollen stage
•                                  PO:0001017 M germinated pollen stage

Parents of pollen development stage (PO:0001007)

subject	relation	object
pollen development stage	BFO:0000050	androecium development stage (PO:0007605)
pollen development stage	is_a	microgametophyte development stage (PO:0025602)

Children of pollen development stage (PO:0001007)

subject	relation	object
B enlarged microsporocyte stage (PO:0001006)	is_a	pollen development stage
E tetrad stage (PO:0001029)	is_a	pollen development stage
L mature pollen stage (PO:0001016)	is_a	pollen development stage
M germinated pollen stage (PO:0001017)	is_a	pollen development stage
K second mitotic division stage (PO:0001015)	is_a	pollen development stage
I first mitotic division stage (PO:0001014)	is_a	pollen development stage
F microspore release stage (PO:0001010)	is_a	pollen development stage
J bicellular pollen stage (PO:0001059)	is_a	pollen development stage
H late unicellular microspore stage (PO:0001013)	is_a	pollen development stage
G early unicellular microspore stage (PO:0001012)	is_a	pollen development stage
D pollen mother cell meiosis stage (PO:0001009)	is_a	pollen development stage
C callose wall formation in pollen mother cells stage (PO:0001008)	is_a	pollen development stage
A microsporogenous mass stage (PO:0001011)	is_a	pollen development stage

PO_GIT

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