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Curr Opin Plant Biol. 2000 Feb;3(1):37-42.

Response of plant development to environment: control of flowering by daylength and temperature.

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John Innes Centre, Norwich, NR4 7UH, UK.


The transition from vegetative growth to flowering is often controlled by environmental conditions and influenced by the age of the plant. Intensive genetic analysis has identified pathways that regulate flowering time of Arabidopsis in response to daylength or low temperature (vernalization). These pathways are proposed to converge to regulate the expression of genes that act within the floral primordium and promote floral development. In the past year, genes that confer the responses to daylength or vernalization have been cloned and have enabled aspects of the genetic models to be tested at the molecular level.

[Indexed for MEDLINE]

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