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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2012.04147.x
|2 doi
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|a pubmed24n0724.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Cheng, Xiaofei
|e verfasserin
|4 aut
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|a NO APICAL MERISTEM (MtNAM) regulates floral organ identity and lateral organ separation in Medicago truncatula
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 09.10.2012
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|a Date Revised 31.03.2022
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|a published: Print-Electronic
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|a GENBANK: JF929904
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|a Citation Status MEDLINE
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|a © 2012 The Authors. New Phytologist © 2012 New Phytologist Trust.
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|a • The CUP-SHAPED COTYLEDON (CUC)/NO APICAL MERISTEM (NAM) family of genes control boundary formation and lateral organ separation, which is critical for proper leaf and flower patterning. However, most downstream targets of CUC/NAM genes remain unclear. • In a forward screen of the tobacco retrotransposon1 (Tnt1) insertion population in Medicago truncatula, we isolated a weak allele of the no-apical-meristem mutant mtnam-2. Meanwhile, we regenerated a mature plant from the null allele mtnam-1. These materials allowed us to extensively characterize the function of MtNAM and its downstream genes. • MtNAM is highly expressed in vegetative shoot buds and inflorescence apices, specifically at boundaries between the shoot apical meristem and leaf/flower primordia. Mature plants of the regenerated null allele and the weak allele display remarkable floral phenotypes: floral whorls and organ numbers are reduced and the floral organ identity is compromised. Microarray and quantitative RT-PCR analyses revealed that all classes of floral homeotic genes are down-regulated in mtnam mutants. Mutations in MtNAM also lead to fused cotyledons and leaflets of the compound leaf as well as a defective shoot apical meristem. • Our results revealed that MtNAM shares the role of CUC/NAM family genes in lateral organ separation and compound leaf development, and is also required for floral organ identity and development
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Plant Proteins
|2 NLM
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|a Retroelements
|2 NLM
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| 700 |
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|a Peng, Jianling
|e verfasserin
|4 aut
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|a Ma, Junying
|e verfasserin
|4 aut
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|a Tang, Yuhong
|e verfasserin
|4 aut
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|a Chen, Rujin
|e verfasserin
|4 aut
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|a Mysore, Kirankumar S
|e verfasserin
|4 aut
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|a Wen, Jiangqi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 195(2012), 1 vom: 24. Juli, Seite 71-84
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:195
|g year:2012
|g number:1
|g day:24
|g month:07
|g pages:71-84
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|u http://dx.doi.org/10.1111/j.1469-8137.2012.04147.x
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