Related Experiment Video
Updated: Sep 18, 2025
09:41
Translating Ribosome Affinity Purification TRAP to Investigate Arabidopsis thaliana Root Development at a Cell Type-Specific Scale
Published on: May 14, 2020
12.2K
Evolutionary Dynamics of Plant TRM6/TRM61 Complexes
Wenjie Yue1, Tong Chen1, Shuyi Liu1
1College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
Plants (Basel, Switzerland)
|June 27, 2025
Summary
The TRM61/TRM6 complex, crucial for plant mRNA regulation, shows conserved evolution across plant species. This study reveals its coordinated expression and potential selection during wheat domestication.
Area of Science:
- Plant molecular biology
- Evolutionary genomics
- Epigenetics
Background:
- N1-methyladenosine (m1A) is a key mRNA modification in plants.
- The TRM61/TRM6 complex acts as the writer for m1A58, impacting plant development and signaling.
Purpose of the Study:
- To investigate the evolutionary dynamics of the TRM61/TRM6 methyltransferase complex across diverse plant lineages.
- To understand the conservation and functional coordination of TRM6 and TRM61 homologs.
Main Methods:
- Systematic identification of TRM6 and TRM61 homologs in 306 plant species.
- Analysis of conserved structural motifs and gene expression patterns.
- Examination of promoter cis-elements and allelic frequencies in wheat.
Main Results:
- TRM6 and TRM61 homologs exhibit conserved evolutionary trajectories and coordinated expression.
- In wheat, these genes show polyploidization-associated coordination, stress-responsive elements, and diverse expression profiles.
- Allelic frequency differences suggest selection on TRM6 and TRM61 during wheat domestication.
Conclusions:
- The TRM61/TRM6 complex is evolutionarily conserved with coordinated expression and function.
- Regulatory elements and selection pressures on TRM6/TRM6 may have influenced wheat domestication and improvement.
Related Concept Videos
02:13Overview of Transposition and Recombination
16.1K
Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
16.1K
01:25Cell Signaling in Plants
5.8K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.8K
01:53Bacterial Transcription
29.6K
RNA polymerase (RNAP) carries out DNA-dependent RNA synthesis in both bacteria and eukaryotes. Bacteria do not have a membrane-bound nucleus. So, transcription and translation occur simultaneously, on the same DNA template.
Transcription can be divided into three main stages, each involving distinct DNA sequences to guide the polymerase. These are:
Transcription can be divided into three main stages, each involving distinct DNA sequences to guide the polymerase. These are:
29.6K
01:21Repressible Operon: trp Operon
161
The trp operon in Escherichia coli exemplifies a repressible operon. It regulates the synthesis of tryptophan through repressor-mediated transcriptional control and attenuation. This dual regulatory mechanism ensures tryptophan biosynthesis occurs only when needed, conserving cellular resources.Structure of the trp OperonThe trp operon consists of five structural genes (trpE, trpD, trpC, trpB, and trpA) that encode enzymes for tryptophan biosynthesis. These genes are transcribed as a single...
161
01:18Protein Transport to the Inner Chloroplast Membrane
2.1K
Proteins targeted to the inner chloroplast membrane, or plastid proteins, are transported by two general pathways: the stop-transfer and the re-insertion or post-import pathways. Most plastid proteins carry N-terminal transit sequences and internal import sequences targeting it to the specific chloroplast subcompartment. Proteins targeted by the stop-transfer pathway have internal hydrophobic sequences that inhibit their translocation into the stroma. As a result, these precursors are arrested...
2.1K
02:23Master Transcription Regulators
2.3K
2.3K