Ground tissue circuitry regulates organ complexity in cereal roots
Ortiz-Ramirez, C. H.; Dias Araujo, P. C.; Zhang, S.; Demesa-Arevalo, E.; Yan, Z.; Xu, X.; Rahni, R.; Gingeras, T. R.; Jackson, D.; Gallagher, K. L.; Birnbaum, K. D.
Show abstract
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 the model 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 SHORT-ROOT (SHR) signaling pathway 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 in grasses that sets up anatomical complexity and a host of key traits. One sentence summarySingle-cell RNA-seq maps the maize root transcriptome uncovering a mechanism that regulates cortex layer number.
Matching journals
The top 3 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Comparative mutant analyses reveal a novel mechanism of ARF regulation in land plants 95%
- Rapid local and systemic jasmonate signalling drives initiation and establishment of plant systemic immunity 95%
- Electrostatic changes enabled the diversification of an exocyst subunit via protein complex escape 95%
Similar papers in this journal
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.