A gene expression atlas of the model legumeMedicago truncatula

Autor: Ji He, Andreas Niebel, Jeremy D. Murray, Tancred Frickey, Georg F. Weiller, Jerome Verdier, Hélène Zuber, Yuhong Tang, Sandra Moreau, Ivone Torres-Jerez, Maren Wandrey, Thomas Ott, Patrick X. Zhao, Stacy N. Allen, Andry Andriankaja, Michael K. Udvardi, Vagner A. Benedito, Klementina Kakar, Xinbin Dai
Přispěvatelé: The Samuel Roberts Noble Foundation, Max Planck Institute of Molecular Plant Physiology (MPI-MP), Max-Planck-Gesellschaft, UMR 0102 - Unité de Recherche Génétique et Ecophysiologie des Légumineuses, Génétique et Ecophysiologie des Légumineuses à Graines (UMRLEG) (UMR 102), Etablissement National d'Enseignement Supérieur Agronomique de Dijon (ENESAD)-Institut National de la Recherche Agronomique (INRA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Etablissement National d'Enseignement Supérieur Agronomique de Dijon (ENESAD)-Institut National de la Recherche Agronomique (INRA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Unité mixte de recherche interactions plantes-microorganismes, Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Research School of Biological Sciences, Australian National University (ANU)
Rok vydání: 2008
Předmět:
Zdroj: Plant Journal
Plant Journal, Wiley, 2008, 55 (3), pp.504-513. ⟨10.1111/j.1365-313X.2008.03519.x⟩
ISSN: 1365-313X
0960-7412
DOI: 10.1111/j.1365-313x.2008.03519.x
Popis: International audience; Legumes played central roles in the development of agriculture and civilization, and today account for approximately one-third of the world's primary crop production. Unfortunately, most cultivated legumes are poor model systems for genomic research. Therefore, Medicago truncatula, which has a relatively small diploid genome, has been adopted as a model species for legume genomics. To enhance its value as a model, we have generated a gene expression atlas that provides a global view of gene expression in all major organ systems of this species, with special emphasis on nodule and seed development. The atlas reveals massive differences in gene expression between organs that are accompanied by changes in the expression of key regulatory genes, such as transcription factor genes, which presumably orchestrate genetic reprogramming during development and differentiation. Interestingly, many legume-specific genes are preferentially expressed in nitrogen-fixing nodules, indicating that evolution endowed them with special roles in this unique and important organ. Comparative transcriptome analysis of Medicago versus Arabidopsis revealed significant divergence in developmental expression profiles of orthologous genes, which indicates that phylogenetic analysis alone is insufficient to predict the function of orthologs in different species. The data presented here represent an unparalleled resource for legume functional genomics, which will accelerate discoveries in legume biology.
Databáze: OpenAIRE
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