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Published on: April 21, 2022
Systematic identification and evolutionary features of rhesus monkey small nucleolar RNAs
Yong Zhang1, Jun Liu, Chunshi Jia
1National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, PR China.
BMC Genomics
|January 27, 2010
Summary
This study presents the first catalog of rhesus monkey non-coding RNAs (ncRNAs), identifying novel small nucleolar RNAs (snoRNAs) and revealing their evolutionary origins and genomic features in primates.
Area of Science:
- Genomics
- Evolutionary Biology
- Molecular Biology
Background:
- Non-protein-coding RNAs (ncRNAs) are crucial in eukaryotic development, evolution, and disease.
- Rhesus macaques are vital primate models, yet their ncRNAs remain understudied.
- Understanding macaque ncRNAs is essential for comparative genomics and evolutionary studies.
Purpose of the Study:
- To systematically profile intermediate-size ncRNAs in rhesus monkeys.
- To identify and characterize novel ncRNAs, particularly small nucleolar RNAs (snoRNAs).
- To investigate the genomic and evolutionary aspects of these ncRNAs in primates.
Main Methods:
- Construction of a complementary DNA (cDNA) library for ncRNA profiling.
- Comparative genomic analysis and Northern blot hybridizations for validation.
- Phylogenetic analysis to infer evolutionary relationships.
Main Results:
- Identification of 117 rhesus monkey ncRNAs, including 80 small nucleolar RNAs (snoRNAs).
- Discovery of lineage- and species-specific snoRNAs, with evidence of genomic duplication.
- Evidence that some snoRNAs are retrogenes and that birds and primates share common snoRNAs and host genes.
Conclusions:
- The study provides the first experimentally validated catalog of rhesus monkey ncRNAs.
- Uncovered unique genomic and evolutionary characteristics of ncRNAs in primates.
- Findings offer crucial insights for future functional studies of snoRNAs in primate evolution.
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