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lecture_16b2010light

lecture_16b2010light - Patterning the Arabidopsis fruit...

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Patterning the Arabidopsis fruit
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Arabidopsis fruit structure replum valve margin valve
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valve valve margin seed Arabidopsis fruit opening replum
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Fruit dehiscence promotes seed dispersal valve valve
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Genes involved in seed dispersal in Arabidopsis can control loss of yield in oilseed crops
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Note that DZ = Valve Margin
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Genes Controlling Fruit Development replum valve margin valve ? ? ?
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wild type shp SHATTERPROOF ( SHP ) gene is required for valve margin formation
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Genes Controlling Fruit Development replum valve margin valve ? ? SHP
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wild type ind shp
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IND is expressed in stripes at the valve margin and is positively regulated by SHP wild type shp replum valve valve margin
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Genes Controlling Fruit Development replum valve margin valve ? ? SHP IND
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How is SHP and IND expression limited to the valve margin? replum valve margin valve SHP IND ? ?
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FRUITFULL ( FUL ) transcription factor is required for valve cells ful Valve cells FUL is expressed in valve cells ful wild type wild type
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SHP and IND are ectopically expressed in ful mutant valves ful mutant Wild type IND expression valve valve
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SHP and IND are negatively regulated by FUL in the valves ful mutant Wild type IND expression
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Is the fruitfull mutant phenotype caused by ectopic expression of the valve margin ( SHP , IND ) genes?
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