Cold- and light-induced changes in the transcriptome of wheat leading to phase transition from vegetative to reproductive growth

Winfield, MO, Lu, C ORCID: 0000-0002-0064-4725, Wilson, ID, Coghill, JA and Edwards, KJ, 2009. Cold- and light-induced changes in the transcriptome of wheat leading to phase transition from vegetative to reproductive growth. BMC Plant Biology, 9 (1), p. 55. ISSN 1471-2229

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Background: For plants to flower at the appropriate time, they must be able to perceive and respond to various internal and external cues. Wheat is generally a long-day plant that will go through phase transition from vegetative to floral growth as days are lengthening in spring and early
summer. In addition to this response to day-length, wheat cultivars may be classified as either winter or spring varieties depending on whether they require to be exposed to an extended period of cold in order to become competent to flower. Using a growth regime to mimic the conditions
that occur during a typical winter in Britain, and a microarray approach to determine changes in gene expression over time, we have surveyed the genes of the major path
ways involved in floral transition. We have paid particular attention to wheat orthologues and functional equivalents of
genes involved in the phase transition in Arabidopsis. We also surveyed all the MADS-box genes that could be identified as such on the Affymetrix genechip wheat genome array. Results: We observed novel responses of several genes thought to be of major importance invernalisation-induced phase transition, and identified several MADS-box genes that might play an important role in the onset of flowering. In addition, we saw responses in genes of the Gibberellin pathway that would indicate that this pathway al
so has some role to play in phase transition. Conclusion:
Phase transition in wheat is more complex than previously reported, and there is evidence that day-length has an influence on genes that were once thought to respond exclusively to an extended period of cold.

Item Type: Journal article
Publication Title: BMC Plant Biology
Creators: Winfield, M.O., Lu, C., Wilson, I.D., Coghill, J.A. and Edwards, K.J.
Publisher: Biomed Central
Date: 11 May 2009
Volume: 9
Number: 1
ISSN: 1471-2229
Divisions: Schools > School of Animal, Rural and Environmental Sciences
Depositing User: Jonathan Gallacher
Date Added: 19 May 2016 13:08
Last Modified: 09 Jun 2017 14:02

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