APC/CTE Shapes Rice Architecture from Top to Bottom
Research, The Plant Cell, The Plant Cell: In BriefGibberellins (GAs) and abscisic acid (ABA) affect plant development in an opposite manner. GA is generally considered a growth promoting hormone, whereas ABA signaling, triggered in response to stress, counteracts the GA effects and restricts growth under suboptimal conditions (Vanstraelen and Benkova,…
Y keep your X? Insights into the genetic basis of plant sex chromosome evolution
Research, The Plant Cell, The Plant Cell: In BriefContrary to animals, sex chromosomes in flowering plants (angiosperms) have evolved at least hundreds of times independently, providing an opportunity to unravel the mechanisms underlying their repeated evolution.
In the XY system, the Y chromosome dominantly confers male identity: XY individuals…
A Chloroplast tRNA-Modifying Enzyme Functions in Plant Development
Research, The Plant Cell, The Plant Cell: In a NutshellLiu, Ren et al. discover how a natural allele of tRNA-modifying GTPase gene PDD leads to pleiotropic developmental defects in rice. Plant Cell https://doi.org/10.1105/tpc.19.00660.
By Hui Liu and Pingli Lu
Fudan University and Henan University
Background: Transfer RNAs (tRNAs) are components…
On the Importance of Variation: A High-Resolution Map of Copy Number Variants in Arabidopsis
Research, The Plant Cell, The Plant Cell: In BriefLinking genotype to phenotype is a major challenge in plant biology. Phenotypic variation observed between individuals of a same plant species is the consequence of a vast array of genetic variation, including Single Nucleotide Polymorphisms (SNPs) and small or large structural variants including Copy…
Seed-Specific Saponin Biosynthesis in Medicago
Research, The Plant Cell, The Plant Cell: In a NutshellRibeiro, Lacchini et al. discover a seed-specific transcription factor that helps determine the composition of the defense compounds saponins in developing Medicago truncatula seeds. Plant Cell https://doi.org/10.1105/tpc.19.00609
By Elia Lacchini, Alain Goossens, and Jacob Pollier
VIB-UGent…
TREHALOSE-6-PHOSPHATE SYNTHASE1 – an essential enzyme in Arabidopsis
Research, The Plant Cell, The Plant Cell: In a NutshellFichtner et al. transformed the embryo-lethal mutant tps1 with variants of the TPS1 gene to identify critical domains for function and localization of the gene product. The Plant Cell (2020) https://doi.org/10.1105/tpc.19.00837
By Franziska Fichtner1,2 and John Lunn1, 1Max Planck Institute of Molecular…
Activate, Breakdown, Branch Out: CUC2/3-DA1-UBP15 Controls Axillary Meristem Initiation
Research, The Plant Cell, The Plant Cell: In BriefShoot architecture is a key ecological and agricultural trait that impacts biomass, the potential to harvest light, planting density, and the reproductive success of a plant. Branching is a prominent feature of plant shoot architecture. A shoot branch develops from an axillary bud, which is located in…
Drawing in the Net: Forty-Five Maize Gene Regulatory Networks from Over 6,000 RNA-Seq Samples
Research, The Plant Cell, The Plant Cell: In BriefEukaryotic gene expression is largely governed by transcription factors (TFs), the nuclear proteins that bind to specific DNA sequences and determine when and where genes are turned on. Transcriptional gene regulatory networks (GRNs) that modulate developmental processes and environmental responses consist…
Ouch! Plant perception of wounding
Research, The Plant Cell, The Plant Cell: In a NutshellSözen et al. describe two independent MAPK signaling cascades that are each activated with different kinetics, providing an immediate and delayed response to herbivore feeding. The Plant Cell (2020) https://doi.org/10.1105/tpc.19.00917
By Cécile Sözen, Marie Boudsocq and Jean Colcombet, Université…