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|a 10.1111/nph.70101
|2 doi
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|a eng
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|a Hu, Bin
|e verfasserin
|4 aut
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| 245 |
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|a Genomic and transcriptomic insights into legume-rhizobia symbiosis in the nitrogen-fixing tree Robinia pseudoacacia
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 22.05.2025
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|a Date Revised 22.05.2025
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2025 The Author(s). New Phytologist © 2025 New Phytologist Foundation.
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|a Robinia pseudoacacia L. (black locust) is a nitrogen (N)-fixing legume tree with significant ecological and agricultural importance. Unlike well-studied herbaceous legumes, R. pseudoacacia is a perennial woody species, representing an understudied group of legume trees that establish symbiosis with Mesorhizobium. Understanding its genomic and transcriptional responses to nodulation provides key insights into N fixation in long-lived plants and their role in ecosystem N cycling. We assembled a high-quality 699.6-Mb reference genome and performed transcriptomic analyses comparing inoculated and noninoculated plants. Differential expression and co-expression network analyses revealed organ-specific regulatory pathways, identifying key genes associated with symbiosis, nutrient transport, and stress adaptation. Unlike Medicago truncatula, which predominantly responds to nodulation in roots, R. pseudoacacia exhibited stem-centered transcriptional reprogramming, with the majority of differentially expressed genes located in stems rather than in roots. Co-expression network analysis identified gene modules associated with "leghemoglobins", metal detoxification, and systemic nutrient allocation, highlighting a coordinated long-distance response to N fixation. This study establishes R. pseudoacacia as a genomic model for nodulating trees, providing essential resources for evolutionary, ecological, and applied research. These findings have significant implications for reforestation, phytoremediation, forestry, and sustainable N management, particularly in depleted, degraded, and contaminated soil ecosystems
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|a Journal Article
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|a Robinia pseudoacacia L.
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|a biological N2 fixation
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|a genome
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|a legume
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|a rhizobia inoculation
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| 650 |
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4 |
|a transcriptional analysis
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|a Messerer, Maxim
|e verfasserin
|4 aut
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|a Haberer, Georg
|e verfasserin
|4 aut
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|a Lux, Thomas
|e verfasserin
|4 aut
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|a Marosi, Vanda
|e verfasserin
|4 aut
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|a Mayer, Klaus F X
|e verfasserin
|4 aut
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|a Oliphant, Kevin D
|e verfasserin
|4 aut
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|a Kaufholdt, David
|e verfasserin
|4 aut
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|a Schulze, Jutta
|e verfasserin
|4 aut
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|a Kreth, Lana-Sophie
|e verfasserin
|4 aut
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|a Jurgeleit, Jens
|e verfasserin
|4 aut
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|a Geffers, Robert
|e verfasserin
|4 aut
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|a Hänsch, Robert
|e verfasserin
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|a Rennenberg, Heinz
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 246(2025), 6 vom: 21. Juni, Seite 2522-2536
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
1 |
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|g volume:246
|g year:2025
|g number:6
|g day:21
|g month:06
|g pages:2522-2536
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|u http://dx.doi.org/10.1111/nph.70101
|3 Volltext
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