Pre jclub28 may2010
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Transcript of Pre jclub28 may2010
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Pires & Dolan Mol. Biol. Evol. 2010
PIFs
HEC/IND
PREbHLH family
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Carretero-Paulet et al. Plant Physiol. 2010
non DNA-binding bHLHs as regulators
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Liljegren et al. Cell 2004
atypical bHLHs lack conserved glutamate residue in DBD
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Gremski et al. Development 2007
HECATEs lack conserved glutamate
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wild-type 35S:HEC2 35S:HEC3
Gremski et al. Development 2007
stigma/style defects in HEC mutants phenocopy spt
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Gremski et al. Development 2007
HECs interact with SPT in Y2H
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Carretero-Paulet et al. Plant Physiol. 2010
non DNA-binding bHLHs as regulators
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Lee et al. Plant Cell Physiol. 2006
PRE proteins; PRE1 = PACLOBUTRAZOL RESISTANCE1
GA1 GA2
paclobutrazol
GA20 oxidasesGA3 oxidasesGA2 oxidases gibberellin pool
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PRE overexpression triggers GA response
Lee et al. Plant Cell Physiol. 2006
GA1 GA2
paclobutrazol
GA20 oxidasesGA3 oxidasesGA2 oxidases gibberellin pool
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PRE overexpression triggers GA response
Lee et al. Plant Cell Physiol. 2006
GA signaling constitutively
repressed
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PRE overexpression triggers GA response
Lee et al. Plant Cell Physiol. 2006 Hyun et al. Plant Mol. Biol. 2006
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PRE6/KIDARI overexpression affects light signaling
Hyun et al. Plant Mol. Biol. 2006
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PRE6/KIDARI suppresses HFR1
Hyun et al. Plant Mol. Biol. 2006
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Wang et al. Plant Cell 2009
PRE5/ATSB1 regulates BR response
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PRE/BNQ may regulate DNA-binding bHLH activities
Mara et al. Plant Cell 2010
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Loss of PRE/BNQ in flowers affects flower development
Mara et al. Plant Cell 2010
bnq3/pre4WT
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Mara et al. Plant Cell 2010
PREs are regulated by floral ID genes (PRE=BNQ)
/PRE1/PRE2
/PRE4
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Mara et al. Plant Cell 2010
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Schlereth et al. Nature 2010
PRE3 is MP target (TMO) required for basal embryogenesis
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Esmon et al. PNAS 2006
PRE2/BNQ2
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SUBFAMILY XV: PRE GENES
AT5G39860
PRE1/BNQ1/ili1-D (PACLOBUTRAZOL-RESISTANCE1/BANQUO1/INCREASED LAMINA INCLINATION) bHLH136
Lee et al. Plant Cell Physiol 2006; Mara et al. Plant Cell 2010; Zhang et al. Plant Cell 2009
AT5G15160 PRE2/BNQ2 bHLH134Lee et al. Plant Cell Physiol 2006; Esmon et al. PNAS 2006
AT1G74500PRE3/TMO7/atbs1-D (TARGET OF MONOPTEROS7/AT-BRI1-SUPP) bHLH135
Lee et al. Plant Cell Physiol 2006; Schlereth et al. Nature 2010; Wang et al. Plant Cell 2009 MP/ARF5 target in embryos
AT3G47710 PRE4/BNQ3 bHLH161 Lee et al. Plant Cell Physiol 2006;
AT3G28857 PRE5 Lee et al. Plant Cell Physiol 2006;
AT1G26945 PRE6/KDR (KIDARI)Lee et al. Plant Cell Physiol 2006; Hyun & Lee Plant Mol Bio 2006
OTHER bHLHs
AT3G25710 TMO5 BHLH032 Schlereth et al. Nature 2010 MP/ARF5 target in embryos
SUBFAMILY VIIIb: HEC GENES
AT4G00120 EDA33/IND (INDEHISCENT) Liljegren et al. Cell 2004
AT5G67060 HEC1 (HECATE 1)
Gremski et al. Development 2006; Okushima et al. Plant Cell 2005 IAA-induction is ARF7-dependent
AT3G50330 HEC2 (HECATE 2) Gremski et al. Development 2006
AT5G09750 HEC3 (HECATE 3) Gremski et al. Development 2006
AT3G21330 bHLH family protein
RECENT bHLH REVIEWS/EVOLUTION
Pires & Dolan Mol. Biol. Evol. 2010
Carretero & Paulet Plant Phys. 2010 in press