Library Open Repository

Conservation of Arabidopsis flowering genes in model legumes

Downloads

Downloads per month over past year

Hecht, VFG and Foucher, F and Ferrandiz, C and Macknight, R and Navarro, C and Morin, J and Vardy, ME and Ellis, N and Beltran, JP and Rameau, C and Weller, JL (2005) Conservation of Arabidopsis flowering genes in model legumes. Plant Physiology, 137. pp. 1420-1434.

[img] PDF
Hecht-PP05+.pdf | Request a copy
Full text restricted
Available under University of Tasmania Standard License.

Abstract

The model plants Arabidopsis (Arabidopsis thaliana) and rice (Oryza sativa) have provided a wealth of information about genes and genetic pathways controlling the flowering process, but little is known about the corresponding pathways in legumes. The garden pea (Pisum sativum) has been used for several decades as a model system for physiological genetics of flowering, but the lack of molecular information about pea flowering genes has prevented direct comparison with other systems. To address this problem, we have searched expressed sequence tag and genome sequence databases to identify flowering-gene-related sequences from Medicago truncatula, soybean (Glycine max), and Lotus japonicus, and isolated corresponding sequences from pea by degenerate-primer polymerase chain reaction and library screening. We found that the majority of Arabidopsis flowering genes are represented in pea and in legume sequence databases, although several gene families, including the MADS-box, CONSTANS, and FLOWERING LOCUS T/TERMINAL FLOWER1 families, appear to have undergone differential expansion, and several important Arabidopsis genes, including FRIGIDA and members of the FLOWERING LOCUS C clade, are conspicuously absent. In several cases, pea and Medicago orthologs are shown to map to conserved map positions, emphasizing the closely syntenic relationship between these two species. These results demonstrate the potential benefit of parallel model systems for an understanding of flowering phenology in crop and model legume species

Item Type: Article
Journal or Publication Title: Plant Physiology
Page Range: pp. 1420-1434
Identification Number - DOI: 10.1104/pp.104.057018
Additional Information: © 2005 American Society of Plant Biologists.
Date Deposited: 02 Dec 2008 22:52
Last Modified: 18 Nov 2014 03:53
URI: http://eprints.utas.edu.au/id/eprint/8076
Item Statistics: View statistics for this item

Repository Staff Only (login required)

Item Control Page Item Control Page