Publications by authors named "Hua-Nan Han"
Protein arginine methylation plays important roles in diverse biological processes, but its role in regulating shoot regeneration remains elusive. In this study, we characterized the function of the protein arginine methyltransferase AtPRMT5 during de novo shoot regeneration in Arabidopsis. AtPRMT5 encodes a type II protein arginine methyltransferase that methylates proteins, including histones and RNA splicing factors.
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- Pseudoroegneria is a small genus within the Triticeae tribe, notable for having its St genome in over half of the allopolyploid Triticeae species, yet its high molecular weight glutenin (HMW-GS) subunits are not well understood.
- The study identifies and characterizes fourteen unique alleles of HMW-GS genes from two Pseudoroegneria species, revealing they share a typical structure with known HMW-GS but have distinct modifications.
- These alleles are notably smaller than normal due to fewer repeat motifs and represent an intermediate evolutionary stage between x- and y-type subunits.
Plants have a profound capacity to regenerate organs from differentiated somatic tissues, based on which propagating plants in vitro was made possible. Beside its use in biotechnology, in vitro shoot regeneration is also an important system to study de novo organogenesis. Phytohormones and transcription factor WUSCHEL (WUS) play critical roles in this process but whether and how epigenetic modifications are involved is unknown.
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