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The cryptochrome gene family in pea includes two differentially expressed CRY2 genes


Platten, JD and Foo, E and Foucher, F and Hecht, VFG and Reid, JB and Weller, JL, The cryptochrome gene family in pea includes two differentially expressed CRY2 genes, Plant Molecular Biology, 59, (4) pp. 683-696. ISSN 0167-4412 (2005) [Refereed Article]

DOI: doi:10.1007/s11103-005-0828-z


The cryptochromes are a family of blue light photoreceptors that play important roles in the control of plant development. We have characterised the cryptochrome gene family in the model legume garden pea (Pisum sativum L.). Pea contains three expressed cryptochrome genes; a single CRY1 orthologue, and two distinct CRY2 genes that we have termed CRY2a and CRY2b. Genomic southern blots indicate that there are unlikely to be more CRY genes in pea. Each of the three genes encodes a full-length CRY protein that contains all the major domains characteristic of other higher plant cryptochromes. Database searches have identified Medicago truncatula expressed sequence tags (ESTs) corresponding to all three genes, whereas only a single CRY2 is represented in EST collections from the more distantly related legumes soybean and Lotus japonicus. The proteins encoded by the pea and Medicago CRY2b genes are distinguished from other CRY2 proteins by their shorter C-terminus. Expression analyses have identified marked differences in the regulation of the three genes, with CRY2b expression in particular distinguished by high-amplitude diurnal cycling and rapid repression in seedlings transferred from darkness to blue light. © Springer 2005.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant physiology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Environmentally sustainable plant production
Objective Field:Environmentally sustainable plant production not elsewhere classified
UTAS Author:Platten, JD (Mr Damien Platten)
UTAS Author:Foo, E (Associate Professor Eloise Foo)
UTAS Author:Hecht, VFG (Dr Valerie Hecht)
UTAS Author:Reid, JB (Professor Jim Reid)
UTAS Author:Weller, JL (Associate Professor Jim Weller)
ID Code:36215
Year Published:2005
Web of Science® Times Cited:35
Deposited By:Plant Science
Deposited On:2005-08-01
Last Modified:2006-05-09

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