A PHR transcription factor-directed gene network reveals key regulators of phosphate metabolism and starvation responses in tomato.

Phosphorus (P) is an essential nutrient for plants, and its scarcity, especially in the form of soluble phosphate (Pi), induces phosphate starvation responses (PSRs). Our research delves into the molecular mechanisms that regulate tomato (Solanum lycopersicum) plant adaptation to Pi deficiency, highlighting the role of 2 PHOSPHATE STARVATION RESPONSE (PHR) transcription factors, SlPHR3 and SlPHR4, as central regulators of Pi metabolism and related developmental/physiological processes, particularly PSRs. Notably, our investigation into the SlPHR3- and SlPHR4-regulated transcriptional network led to the discovery of 3 previously unidentified regulators of Pi metabolism and PSRs: SlGRAS47, SlBHLH48, and SlMYB28.

SlMIR164A regulates fruit ripening and quality by controlling SlNAM2 and SlNAM3 in tomato.

MiRNAs are important posttranscriptional regulators of plant development. Many miRNAs, such as the conserved miR164 species, are encoded by families of MIRNA genes, but the specific roles of individual MIRNA genes are largely undefined. Here, we characterize the functions and regulatory mechanisms of SlMIR164A, one of the primary genes of Sly-miR164, in tomato.

Chromosome-scale assembly of the Dendrobium chrysotoxum genome enhances the understanding of orchid evolution.

As one of the largest families of angiosperms, the Orchidaceae family is diverse. Dendrobium represents the second largest genus of the Orchidaceae. However, an assembled high-quality genome of species in this genus is lacking.