INFLORESCENCE DEVELOPMENT IN TOMATO: LINKING GENE FUNCTION WITH A ZIGZAG MODEL CLAIRE PÉRILLEUX, GUILLAUME LOBET, PIERRE TOCQUIN PLANT PHYSIOLOGY, PHYTOSYSTEMS, UNIVERSITY OF LIÈGE Genetic Variation of Flowering Time Genes and Applications for Crop Improvement Bielefeld - 25 March 2014
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I N F L O R E S C E N C E D E V E L O P M E N T I N T O M AT O : L I N K I N G G E N E F U N C T I O N W I T H A Z I G Z A G M O D E L
C L A I R E P É R I L L E U X , G U I L L A U M E L O B E T, P I E R R E T O C Q U I N P L A N T P H Y S I O L O G Y, P H Y T O S Y S T E M S , U N I V E R S I T Y O F L I È G E
Genetic Variation of Flowering Time Genes and Applications for Crop Improvement
!
Bielefeld - 25 March 2014
I N F L O R E S C E N C E D E V E L O P M E N T I N T O M AT O
1 Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
Vegetative phase Reproductive phase
SAM
FM0
SYMF0
SYM
F0 F1
SYMTM FM2
IM3IM2
FM1IM1 SYM
A. B.
E X I S T I N G M O D E L S O F I N F L O R E S C E N C E D E V E L O P M E N T
3
P R U S I N K I E W I C Z E T A L . 2 0 0 7
V E G E TAT I V E N E S S O F M E R I S T E M S D E C R E A S E W I T H A G E A N D
D E F I N E T H E I N F L O R E S C E N C E A R C H I T E C T U R E
PA R K E T A L . 2 0 1 2
M AT U R AT I O N R AT E O F M E R I S T E M S D E F I N E S T H E O V E R A L L
I N F L O R E S C E N C E A R C H I T E C T U R E
Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
4
C R E AT E A S I M P L E M O D E L O F I N F L O R E S C E N C E D E V E L O P M E N T T H AT C A N A C C O U N T F O R A L L E X I S T I N G P H E N O T Y P E S O B S E R V E D I N T O M AT O
A I M O F T H E P R O J E C T
Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
V E G E TAT I V E G A I N A N D L O S S G E N E R AT E S A Z I G Z A G M O D E L
2
3
4
5
6
7
8
T I M E [ P L A S T O C H R O N S ]
ME
RIS
TE
M V
EG
ETA
TIV
EN
ES
S [
- ]
Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014 5
F L O R A L T R A N S I T I O N L E A F R E P R E S S I O N
F L O R A L C O M M I T M E N T M E R I S T E M R E P R E S S I O N
V E G E TAT I V E L O S S[ d V ]
V E G E TAT I V E G A I N [ΔV ]
F L O R A L T R A N S I T I O N L E A F R E P R E S S I O N
F L O R A L C O M M I T M E N T M E R I S T E M R E P R E S S I O N
Z I G Z A G M O D E L : D E C R E A S I N G V E G E TAT I V E L O S S [ d V ]
6
2
3
4
5
6
7
8
T I M E [ P L A S T O C H O N S ]
ME
RIS
TE
M V
EG
ETA
TIV
EN
ES
S [
- ]
Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
2
3
4
5
6
7
8
T I M E [ P L A S T O C H O N S ]
ME
RIS
TE
M V
EG
ETA
TIV
EN
ES
S [
- ]
F L O R A L T R A N S I T I O N L E A F R E P R E S S I O N
F L O R A L C O M M I T M E N T M E R I S T E M R E P R E S S I O N
Z I G Z A G M O D E L : I N C R E A S I N G V E G E TAT I V E L O S S [ d V ]
6 Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
F L O R A L T R A N S I T I O N L E A F R E P R E S S I O N
F L O R A L C O M M I T M E N T M E R I S T E M R E P R E S S I O N
7
Z I G Z A G M O D E L : I N C R E A S I N G V E G E TAT I V E G A I N [ΔV ]
2
3
4
5
6
7
8
T I M E [ P L A S T O C H O N S ]
ME
RIS
TE
M V
EG
ETA
TIV
EN
ES
S [
- ]
Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
ΔV
dVdV
ΔV
dV
ΔV
A. Number of flowers B. Branching level C. Number of vegetative axes
T H E Z I G Z A G M O D E L I S U S E D T O G E N E R AT E A M O R P H O S PA C E
8
ΔV: 0→3 d V: 0 →2 0
R U N T H E M O D E L
Q U A N T I F Y T H E O U T P U T
Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
L i p p m a n e t a l . 2 0 0 8 , P L o S B i o l o g y
s f t s
A l l e n a n d S u s s e x , 1 9 9 6 , P l a n t a
f a l s i f l o r a ( f a ) L FY
dV
ΔV
A l l e n a n d S u s s e x , 1 9 9 6 , P l a n t a
a n a n t h a ( a n ) UFO
M c A l i s t e r e t a l . , 2 0 1 2 , N a t u r e G e n e t i c s
t e r m i n a t i n g f l o w e r ( t m f )
S z y m k o w i a k a n d I r i s h 1 9 9 9 , P l a n t C e l l
j o i n t l e s s ( j ) AGL24
M o l i n e r o - R o s a l e s e t a l . , 2 0 0 4 , P l a n t a
s i n g l e f l o w e r t r u s s ( s f t ) FT
Q u i n e t e t a l . , 2 0 0 6 , J E x p B o t
c o m p o u n d i n f l o re s c e n c e ( s ) WOX9
T H E Z I G Z A G M O D E L I S U S E D T O G E N E R AT E A M O R P H O S PA C E
9
W T
Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
d V
ΔV
G E N E F U N C T I O N S W I T H I N T H E Z I G Z A G M O D E L
V E G E TAT I V E G A I N
V E G E TAT I V E L O S S
2
3
4
5
6
7
8
T I M E [ P L A S T O C H R O N S ]
ME
RIS
TE
M V
EG
ETA
TIV
EN
ES
S [
- ]
F L O R A L T R A N S I T I O N FA , S F T
F L O R A L C O M M I T M E N T A N
Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
FA , S , J , T M F
FA , J , S F T
1 0
F M
I M
v e g
v e g
A N
FA J S
T M F
S F T
Périlleux et al. | Genetic Variation of Flowering Time Genes and Applications for Crop Improvement | Bielefeld - 24 March 2014
G E N E F U N C T I O N S W I T H I N T H E Z I G Z A G M O D E L
1 1
C. Périlleux, G. Lobet, and P. Tocquin, 2014, Inflorescence architecture in tomato: gene functions within a zigzag model, Frontiers in Plant Genetics and Genomics.
F T
L F YA G L 2 4
U F O
W O X 9
T H A N K Y O U F O R Y O U R AT T E N T I O N !
A N Y Q U E S T I O N S ?
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