MicroRNA Target Sequences in Rice Evolution
Author Information
Author(s): Guo Xingyi, Gui Yijie, Wang Yu, Zhu Qian-Hao, Helliwell Chris, Fan Longjiang
Primary Institution: Institute of Crop Science & Institute of Bioinformatics, Zhejiang University
Hypothesis
How do microRNA binding sites evolve in rice?
Conclusion
The study found that purifying selection maintains the conservation of miRNA binding sites in rice, with nucleotide mutations playing a significant role in their gain and loss during evolution.
Supporting Evidence
- The gain/loss rate of miRNA binding sites was estimated to be 3.0 × 10-9 per year.
- Most of the gains/losses were due to nucleotide mutation.
- Purifying selection was observed in rice miRNA target sites.
Takeaway
This study looks at how tiny molecules called microRNAs help control genes in rice, showing that changes in these control sites happen slowly over time.
Methodology
The study used a comparative analysis of miRNA-targeted duplicated gene pairs and population genetics to investigate the evolution of miRNA binding sites.
Limitations
The study may have a false positive rate of 9.2% for predicted miRNA target sites.
Participant Demographics
The study included 30 cultivated rice lines and 15 wild rice lines.
Statistical Information
P-Value
5.533e-06
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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