In the model legume Medicago truncatula, we identified a new transcription factor of the CCAAT-binding family, MtHAP2-1, for which RNA interference (RNAi) and in situ hybridization experiments indicate a key role during nodule development, possibly by controlling nodule meristem function. We could also show that MtHAP2-1 is regulated by microRNA169, whose overexpression leads to the same nodule developmental block as MtHAP2-1 RNAi constructs. The complementary expression pattern of miR169 and MtHAP2-1 and the phenotype of miR169-resistant MtHAP2-1 nodules strongly suggest, in addition, that the miR169-mediated restriction of MtHAP2-1 expression to the nodule meristematic zone is essential for the differentiation of nodule cells.
机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Ben-Naim, O
;
Eshed, R
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机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Eshed, R
;
Parnis, A
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机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Parnis, A
;
Teper-Bamnolker, P
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机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Teper-Bamnolker, P
;
Shalit, A
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机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Shalit, A
;
Coupland, G
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机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Coupland, G
;
Samach, A
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Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, IsraelHebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Samach, A
;
Lifschitz, E
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机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Ben-Naim, O
;
Eshed, R
论文数: 0引用数: 0
h-index: 0
机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Eshed, R
;
Parnis, A
论文数: 0引用数: 0
h-index: 0
机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Parnis, A
;
Teper-Bamnolker, P
论文数: 0引用数: 0
h-index: 0
机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Teper-Bamnolker, P
;
Shalit, A
论文数: 0引用数: 0
h-index: 0
机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Shalit, A
;
Coupland, G
论文数: 0引用数: 0
h-index: 0
机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Coupland, G
;
Samach, A
论文数: 0引用数: 0
h-index: 0
机构:
Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, IsraelHebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel
Samach, A
;
Lifschitz, E
论文数: 0引用数: 0
h-index: 0
机构:Hebrew Univ Jerusalem, Fac Agr Food & Environm Qual Sci, Robert H Smith Inst Plant Sci & Genet, IL-76100 Rehovot, Israel