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Conservation of Arabidopsis Flowering Genes in Model Legumes
- Source :
- Plant Physiology, Plant Physiology, American Society of Plant Biologists, 2005, 137 (4), pp.1420-1434. ⟨10.1104/pp.104.057018⟩
- Publication Year :
- 2005
- Publisher :
- Oxford University Press (OUP), 2005.
-
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.
- Subjects :
- 0106 biological sciences
Physiology
Lotus
Lotus japonicus
Locus (genetics)
Plant Science
01 natural sciences
[SDV.GEN.GPL]Life Sciences [q-bio]/Genetics/Plants genetics
03 medical and health sciences
Arabidopsis
Flowering Locus C
Botany
Genetics
ComputingMilieux_MISCELLANEOUS
030304 developmental biology
LOTUS JAPONICUS
2. Zero hunger
0303 health sciences
Expressed sequence tag
Medicago
biology
fungi
ARABIDOPSIS THALIANA
food and beverages
BASE DE DONNEES
biology.organism_classification
Medicago truncatula
PISUM SATIVUM
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15322548 and 00320889
- Volume :
- 137
- Database :
- OpenAIRE
- Journal :
- Plant Physiology
- Accession number :
- edsair.doi.dedup.....4a38208db361744fa120a0dca1cdaf11