Genomic Inventory and Transcriptional Analysis of Medicago truncatula Transporters

被引：59

作者：

Benedito, Vagner A. ^{[1
,2
]}

Li, Haiquan ^{[1
]}

Dai, Xinbin ^{[1
]}

Wandrey, Maren ^{[3
]}

He, Ji ^{[1
]}

Kaundal, Rakesh ^{[1
]}

Torres-Jerez, Ivone ^{[1
]}

Gomez, S. Karen ^{[4
]}

Harrison, Maria J. ^{[4
]}

Tang, Yuhong ^{[1
]}

Zhao, Patrick X. ^{[1
]}

Udvardi, Michael K. ^{[1
]}

机构：

[1] Samuel Roberts Noble Fdn Inc, Ardmore, OK 73401 USA

[2] W Virginia Univ, Genet & Dev Biol Program, Div Plant & Soil Sci, Morgantown, WV 26506 USA

[3] Max Planck Inst Mol Plant Physiol, D-14476 Golm, Germany

[4] Cornell Univ, Boyce Thompson Inst Plant Res, Ithaca, NY 14853 USA

来源：

PLANT PHYSIOLOGY | 2010年 / 152卷 / 03期

关键词：

AFFINITY MOLYBDATE TRANSPORTER; SYMBIOTIC NITROGEN-FIXATION; OUTER-MEMBRANE PROTEINS; PERIBACTEROID MEMBRANE; LOTUS-JAPONICUS; DICARBOXYLATE TRANSPORTER; INSERTIONAL MUTAGENESIS; AMMONIUM TRANSPORTERS; POTASSIUM TRANSPORTER; PHOSPHATE TRANSPORTER;

D O I：

10.1104/pp.109.148684

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Transporters move hydrophilic substrates across hydrophobic biological membranes and play key roles in plant nutrition, metabolism, and signaling and, consequently, in plant growth, development, and responses to the environment. To initiate and support systematic characterization of transporters in the model legume Medicago truncatula, we identified 3,830 transporters and classified 2,673 of these into 113 families and 146 subfamilies. Analysis of gene expression data for 2,611 of these transporters identified 129 that are expressed in an organ-specific manner, including 50 that are nodule specific and 36 specific to mycorrhizal roots. Further analysis uncovered 196 transporters that are induced at least 5-fold during nodule development and 44 in roots during arbuscular mycorrhizal symbiosis. Among the nodule-and mycorrhiza-induced transporter genes are many candidates for known transport activities in these beneficial symbioses. The data presented here are a unique resource for the selection and functional characterization of legume transporters.

引用

页码：1716 / 1730

页数：15

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