ArticleJournal of experimental botany2014
The Aux/IAA gene rum1 involved in seminal and lateral root formation controls vascular patterning in maize (Zea mays L.) primary roots.
Article in Journal of experimental botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 40 papers.
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Who cites it
40 citing papers in PubMed.
- Wheat Drought Tolerance: Unveiling a Synergistic Future with Conventional and Molecular Breeding Strategies.Plants (Basel, Switzerland) · 2025Review
- Identification of phenotypic and transcriptomic signatures underpinning maize crown root systems.Plant phenomics (Washington, D.C.) · 2025Article
- A computational Evo-Devo approach for elucidating the roles of PLETHORA transcription factors in regulating root development.PloS one · 2025Article
- Roles of auxin pathways in maize biology.Journal of experimental botany · 2023Review
- Genome-wide identification and expression analysis of the AUX/IAA gene family in turnip (Brassica rapa ssp. rapa).BMC plant biology · 2023Article
- Transcriptomic Insights into Functions ofPlants (Basel, Switzerland) · 2023Article
- Poly-γ-glutamic acid promoted maize root development by affecting auxin signaling pathway and the abundance and diversity of rhizosphere microbial community.BMC plant biology · 2022Article
- The power of classic maize mutants: Driving forward our fundamental understanding of plants.The Plant cell · 2022Review
- Deconstructing the root system of grasses through an exploration of development, anatomy and function.Plant, cell & environment · 2022Review
- Genome-wide association, RNA-seq and iTRAQ analyses identify candidate genes controlling radicle length of wheat.Frontiers in plant science · 2022Article
- Integration of Transcriptomic and Proteomic Profiles Reveals Multiple Levels of Genetic Regulation of Taproot Growth in Sugar Beet (Frontiers in plant science · 2022Article
- Genetic Determinants of Biomass in CFrontiers in plant science · 2022Review
- Combined Transcriptome and Proteome Analysis of Maize (Current issues in molecular biology · 2021Article
- Ribosome profiling elucidates differential gene expression in bundle sheath and mesophyll cells in maize.Plant physiology · 2021Article
- Synthesis and regulation of auxin and abscisic acid in maize.Plant signaling & behavior · 2021Review
- Analysis of unigenes involved in lateral root development in Bupleurum chinense and B. scorzonerifolium.Planta · 2021Article
- Genetic control of root plasticity in response to salt stress in maize.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
- Identification and Analysis of Zinc Efficiency-Associated Loci in Maize.Frontiers in plant science · 2021Article
- Identification and functional characterization of thePlant signaling & behavior · 2020Article
- Abscisic Acid Regulates Auxin Distribution to Mediate Maize Lateral Root Development Under Salt Stress.Frontiers in plant science · 2019Article
Corrections and comments
- Erratum issued
Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The maize (Zea mays L.) Aux/IAA protein RUM1 (ROOTLESS WITH UNDETECTABLE MERISTEMS 1) controls seminal and lateral root initiation. To identify RUM1-dependent gene expression patterns, RNA-Seq of the differentiation zone of primary roots of rum1 mutants and the wild type was performed in four biological replicates. In total, 2 801 high-confidence maize genes displayed differential gene expression with Fc ≥2 and FDR ≤1%. The auxin signalling-related genes rum1, like-auxin1 (lax1), lax2, (nam ataf cuc 1 nac1), the plethora genes plt1 (plethora 1), bbm1 (baby boom 1), and hscf1 (heat shock complementing factor 1) and the auxin response factors arf8 and arf37 were down-regulated in the mutant rum1. All of these genes except nac1 were auxin-inducible. The maize arf8 and arf37 genes are orthologues of Arabidopsis MP/ARF5 (MONOPTEROS/ARF5), which controls the differentiation of vascular cells. Histological analyses of mutant rum1 roots revealed defects in xylem organization and the differentiation of pith cells around the xylem. Moreover, histochemical staining of enlarged pith cells surrounding late metaxylem elements demonstrated that their thickened cell walls displayed excessive lignin deposition. In line with this phenotype, rum1-dependent mis-expression of several lignin biosynthesis genes was observed. In summary, RNA-Seq of RUM1-dependent gene expression in maize primary roots, in combination with histological and histochemical analyses, revealed the specific regulation of auxin signal transduction components by RUM1 and novel functions of RUM1 in vascular development.
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