Ground tissue circuitry regulates organ complexity in maize and Setaria
| Autor: | Carlos Ortiz-Ramírez, Ramin Rahni, Sanqiang Zhang, Kenneth D. Birnbaum, Thomas R. Gingeras, Laura Lee, Bruno Guillotin, Poliana Coqueiro Dias Araujo, Zhe Yan, Edgar Demesa-Arevalo, Joyce Van Eck, David A. Jackson, Xiaosa Xu, Kimberly L. Gallagher |
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| Rok vydání: | 2021 |
| Předmět: |
Setaria
Multidisciplinary Transcription Genetic Plant roots Setaria Plant food and beverages Biology Flow Cytometry biology.organism_classification Plant Roots Zea mays Article Ground tissue medicine.anatomical_structure Symbiosis Cortex (anatomy) Botany medicine RNA-Seq Single-Cell Analysis Genome Plant Plant Proteins Transcription Factors |
| Zdroj: | Science |
| ISSN: | 1095-9203 0036-8075 |
| Popis: | Most plant roots have multiple cortex layers that make up the bulk of the organ and play key roles in physiology, such as flood tolerance and symbiosis. However, little is known about the formation of cortical layers outside of the highly reduced anatomy of Arabidopsis. Here we use single-cell RNAseq to rapidly generate a cell resolution map of the maize root, revealing an alternative configuration of the tissue formative transcription factor SHORT-ROOT (SHR) adjacent to an expanded cortex. We show that maize SHR protein is hypermobile, moving at least eight cell layers into the cortex. Higher-order SHR mutants in both maize and Setaria have reduced numbers of cortical layers, showing that the SHR pathway controls expansion of cortical tissue to elaborate anatomical complexity. |
| Databáze: | OpenAIRE |
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