研究基盤情報 - 組織別発生段階 - 一覧

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組織別発生段階一覧

: Growth process   : Mature

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組織 シンボル 名称 イベント エンハンサー
トラップ系統 		参考画像 突然変異系統
(遺伝子) 		発現遺伝子
胚 Em1 Zygote Fertilization
胚 Em2 Globular stage Ⅰ First division of fertilized egg?ca.25-cell stage
Rapid cell division
胚 Em3 Globular stage Ⅱ ca.25-ca.150-cell stage
Globular-shaped
Relatively slow growth 		gle1   gle3   gle2  
all(3)
胚 Em4 Globular stage III Oblong-shaped
Onset of exponential growth, dual rhythmicity of growth and cell increase
Gradient of cell size along dorsoventral direction
Pattern formation, regionalization 		cle1   sho2   sho1   shl4   shl2   shl1  
all(6) 		OSBZ8
VP1
OSH1

all(3)
胚 Em5 SAM and radicle formation Onset of coleoptile, SAM and radicle differentiation shl3  
胚 Em6 First leaf formation Protrusion of 1st leaf primordium
Enlargement of scutellum
Expression of RAmy1A in scutellar epithelium (Onset of juvenile vegetative stage) 		AMY1A
胚 Em7 Second and third leaf formation Protrusion of 2nd and 3rd leaf primordia in alternate phyllotaxis
Protrusion of epiblast
胚 Em8 Enlargement of organs Enlargement of organs and morphological completion
Expression of maturation-related genes such as OsEM, Rab16A, REG2, etc 		P5816 P2631 P5777
all(3)   		riv2   riv1  
all(2) 		REG2
RAB16A
EM
VP1

all(4)
胚 Em9 Maturation Expression of maturation-related genes such as OsEM, RAB16A etc.
胚 Em10 Dormancy Dormancy P2631 P5777 P14329 P15329 C0012 C0016 C0233 C0252 C0253 C0300 C0308 P1970 P2082 P2088 P2093 P2130 P2378 P2407 P2419
all(19)  
花序 In1 Establishment of rachis meristem Conversion of vegetative meristem to rachis meristem.
Enlargement of rachis meristem.
Formation of bract 1 primordium.
Onset of -2 stem internode elongation
花序 In2 Formation of primary branches Ⅰ Rachis meristem reach maximum size.
Formation of first two primary branch primordia and bract 2 and 3 primordia 		lax   sp   Dn1   Dn3   Dn2   pla1  
all(6)
花序 In3 Formation of primary branches Ⅱ Formation of primary branch primordia in spiral arrangement.
Abortion of rachis meristem at the end of this period.
Onset of -1 stem internode elongation 		lax   pap1  
all(2)
花序 In4 Elongation of primary branches Simulaneous elongation of primary branches sp  
花序 In5 Formation of higher-order branches Formation of secondary and tertiary branches.
Onset of uppermost stem elongation 		P1856 P1940 P5097 P5817 P7900 P7932
all(6)   		lax   Dn1   Dn3   Dn2  
all(4)
花序 In6 Differentiation of glumes Differentiation of two rudimentary glumes, two empty glumes, lemma and palea in 1/2 alternate arrangement
花序 In7 Differentiation of floral organs Differentiation of floral organs,two lodicules, six stamens and a carpel in whorl
花序 In8 Rapid elongation of rachis and branches Rapid elongation of rachis and branches.
Completion of anther and ovule development 		ri  
花序 In9 Heading and flowering Inflorescence emergence out of the sheath of flag leaf.
Flowering at around noon
葉 P0 Formation of leaf founder cells Recruitment of leaf founder cells sho2   sho1   lsy  
all(3) 		PNH1
OSH1

all(2)
葉 P1 Formation of leaf primordium Protrusion of primordium.
Elongation of leaf margin around SAM 		DL
PNH1
SCR

all(3)
葉 P2 Hood-shape primordium Hood-like shape Overlapping of two margins.
Differentiation of vascular bundle 		DL
PNH1
SCR

all(3)
葉 P3 Formation of ligule primordium Formation of ligule primordia.
Formation of leaf blade/sheath boundary.
Differentiation of sclerenchymatous cells.
Initiation of epidermal specific cells
lg   DL
PNH1
SCR

all(3)
葉 P4 Rapid elongation of leaf blade Differentiation of epidermal specific cells (bulliform cells, silica cells, cork cells and stomata).
Elongation of leaf blade 		DL
PNH1
SCR

all(3)
葉 P5 Rapid elongation of leaf sheath Elongation of leaf sheath.
Emergence of leaf blade from the sheath of proceeding leaf .
Formation of lacunae.
Maturation of leaf epidermal cells 		P5664 P5685 P5907 P7937 P8545 P1772 P2503 P4692
all(8)  
葉 P6 Maturation Bending leaf blade at the lamina joint
根 Cr1 Establishment of initial cells Establishment of initial cells of crown root primordium by periclinal divisions of ground meristem crl1   QHB
SCR

all(2)
根 Cr2 Establishment of epidermis-endodermis, central cylinder and root cap initials Formation of epidermal-endodermal and central cylinder initials from the inner layer of the initial.
Formation of root cap initial from the outer layer of the initial 		QHB
SCR

all(2)
根 Cr3 Differentiation of epidermis and endodermis Differentiation of epidermis and endodermis from epidermal-endodermal initial QHB
SCR

all(2)
根 Cr4 Differentiation of cortex Formation of cortex by periclinal divisions of endodermal cells QHB
SCR

all(2)
根 Cr5 Establishment of fundamental organization Establishment of fundamental organization of root.
Root cap reaches the stem epidermis 		QHB
SCR

all(2)
根 Cr6 Onset of cell elongation and vacuolation Cells in the most basal region of stele start cell elongation crl2   QHB
SCR

all(2)
根 Cr7 Emergence of crown root Elongation of basal cells of all tissues.
Emergence of crown root out of stem 		QHB
SCR

all(2)
小穂 Sp1 Formation of a pair of rudimentary glume primordia Formation of two rudimentary glumes in 1/2 alternate phyllotaxy fzp   FZP
小穂 Sp2 Formation of a pair of empty glume primordia Formation of two empty glumes in 1/2 alternate phyllotaxy ur2  
小穂 Sp3 Formation of lemma primordium Formation of lemma in 1/2 alternate phyllotaxy.
Elongation of empty glumes 		lhs   bd2   bd1   An3   An2   An1  
all(6) 		RAP1A
LHS1

all(2)
小穂 Sp4 Formation of palea primordium Formation of palea in 1/2 alternate phyllotaxy.
Elongation of empty glumes and lemma 		dp2   dp1  
all(2) 		RAP1A
LHS1

all(2)
小穂 Sp5 Formation of lodicule primordia Formation of two lodicules on the lemma side.
Elongation of empty glumes lemma and palea 		spw1   MADS45
RAP1A
MADS7
SPW1
MADS2

all(5)
小穂 Sp6 Formation of stamen primordia Formation of six stamen primordia in whorl spw1   MADS45
MADS7
RAG
SPW1
MADS2

all(5)
小穂 Sp7 Formation of carpel primordium Formation of carpel.
Differentiation of stamen into filament and anther 		P6129 P1652 P2097 P2449 P4555 P4583 P5938 P5992
all(8)   		dl   MADS45
DL
MADS7
RAG

all(4)
小穂 Sp8 Formation of ovule and pollens Differentiation of integuments and embryo sac.
Pollen differentiation 		msp1   MADS45
MADS13
MADS7
MSP1

all(4)
胚珠 Ov1 Ovule primordium differentiation Ovule primordium differentiation.
Carpel elongation 		MADS13
胚珠 Ov2 Integument primordium differentiation Integument primordium differentiation.
Ovary locule formation.
Archesporial cell enlargement
胚珠 Ov3 Division of integument primordium Division of integument primordium into inner and outer integuments.
Megaspore mother cell differentiation 		SPW1
MSP1

all(2)
胚珠 Ov4 Meiosis of megaspore mother cell Integuments elongation.
Micropyle formation.
Meiosis of megaspore mother cell
胚珠 Ov5 Degeneration of three micropylar spores Integuments elongation.
Degeneration of three micropylar spores
胚珠 Ov6 First mitotic nuclear division First mitotic nuclear division of chalazal spore.
Onset of ovule inclination
胚珠 Ov7 Second mitotic nuclear division Second mitotic nuclear division.
Vacuole formation in megagametophyte
胚珠 Ov8 Third mitotic nuclear division Third mitotic nuclear division resulting in eight-nucleate megagametophyte
胚珠 Ov9 Polarization of nuclei Polarization of nuclei.
Completion of ovule inclination


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