Maternal effect contributes to grain-filling defects of Ospho1;2 rice mutants
In seeds, filial and maternal tissues are symplastically isolated. Nutrient delivery through plasma membrane-localized transporters at the junction of filial and maternal tissues is indispensable for sustaining endosperm and embryo developm...
Dose-dependent long-distance movement of microRNA399 duplex regulates phosphate homeostasis in Arabidopsis
MicroRNA399 (miR399), a phosphate (Pi) starvation-induced long-distance signal, is first produced in shoots and moves to roots to suppress PHO2 encoding a ubiquitin conjugase, leading to enhanced Pi uptake and root-to-shoot translocation. H...
TWAS coupled with eQTL analysis reveals the genetic connection between gene expression and flowering time in Arabidopsis
Genome-wide association study (GWAS) has improved our understanding of complex traits, but challenges exist in distinguishing causation versus association caused by linkage disequilibrium. Instead, transcriptome-wide association studies (TW...
Conservation of land plant-specific receptor-like cytoplasmic kinase subfamily XI possessing a unique kinase insert domain
The number of genes encoding receptor-like kinases (RLKs) has expanded in the plant lineage. Their expansion has resulted in the emergence of diverse domain architectures that function in signaling cascades related to growth, development, a...
Uncovering Small RNA-Mediated Responses to Phosphate Deficiency in Arabidopsis by Deep Sequencing
Recent studies have demonstrated the important role of plant miRNAs under nutrient deficiencies. In this study, deep sequencing of Arabidopsis thaliana small RNAs was conducted to reveal microRNAs (miRNAs) and other small RNAs that were dif...
Regulatory Network of MicroRNA399 and PHO2 by Systemic Signaling
Recently, we showed that microRNA399s (miR399s) control inorganic phosphate (Pi) homeostasis by regulating the expression of PHO2 encoding a ubiquitin-conjugating E2 enzyme (UBC24). Arabidopsis plants overexpressing miR399 or the pho2 mutan...