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JXB Advance Access published online on April 9, 2007
Journal of Experimental Botany, doi:10.1093/jxb/erm042
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© The Author [2007]. Published by Oxford University Press [on behalf of the Society for Experimental Biology]. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org

FLOWERING NEWSLETTER REVIEW

Control of flowering time in temperate cereals: genes, domestication, and sustainable productivity

James Cockram1, Huw Jones1, Fiona J. Leigh1, Donal O'Sullivan1, Wayne Powell1, David A. Laurie2 and Andrew J. Greenland1,*

1National Institute of Agricultural Botany, Huntingdon Road, Cambridge CB3 0LE, UK
2Crop Genetics Department, John Innes Centre, Norwich NR4 7UH, UK

* To whom correspondence should be addressed. E-mail: andy.greenland{at}niab.com

The control of flowering is central to reproductive success in plants, and has a major impact on grain yield in crop species. The global importance of temperate cereal crops such as wheat and barley has meant emphasis has long been placed on understanding the genetics of flowering in order to enhance yield. Leads gained from the dissection of the molecular genetics of model species have combined with comparative genetic approaches, recently resulting in the isolation of the first flowering time genes in wheat and barley. This paper reviews the genetics and genes involved in cereal flowering pathways and the current understanding of how two of the principal genes, Vrn and Ppd, have been involved in domestication and adaptation to local environments, and the implications for future breeding programmes are discussed.

Key words: Barley, diversity, domestication, flowering, gene, wheat

Received 22 November 2006; Revised 12 February 2007 Accepted 13 February 2007


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