PUBLICATION
Differences in vertebrate microRNA expression
- Authors
- Ason, B., Darnell, D.K., Wittbrodt, B., Berezikov, E., Kloosterman, W.P., Wittbrodt, J., Antin, P.B., and Plasterk, R.H.
- ID
- ZDB-PUB-060921-25
- Date
- 2006
- Source
- Proceedings of the National Academy of Sciences of the United States of America 103(39): 14385-14389 (Journal)
- Registered Authors
- Ason, Brandon, Kloosterman, Wigard, Plasterk, Ronald H.A., Wittbrodt, Jochen
- Keywords
- chick, evolution, medaka, miRNA, zebrafish
- MeSH Terms
-
- Animals
- Chickens/genetics
- Embryo, Nonmammalian/embryology
- Embryo, Nonmammalian/metabolism
- Gene Expression Profiling
- Gene Expression Regulation, Developmental
- Mice
- MicroRNAs/genetics*
- Oryzias/embryology
- Oryzias/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Vertebrates/genetics*
- Zebrafish/embryology
- Zebrafish/genetics
- PubMed
- 16983084 Full text @ Proc. Natl. Acad. Sci. USA
Citation
Ason, B., Darnell, D.K., Wittbrodt, B., Berezikov, E., Kloosterman, W.P., Wittbrodt, J., Antin, P.B., and Plasterk, R.H. (2006) Differences in vertebrate microRNA expression. Proceedings of the National Academy of Sciences of the United States of America. 103(39):14385-14389.
Abstract
MicroRNAs (miRNAs) attenuate gene expression by means of translational inhibition and mRNA degradation. They are abundant, highly conserved, and predicted to regulate a large number of transcripts. Several hundred miRNA classes are known, and many are associated with cell proliferation and differentiation. Many exhibit tissue-specific expression, which aids in evaluating their functions, and it has been assumed that their high level of sequence conservation implies a high level of expression conservation. A limited amount of data supports this, although discrepancies do exist. By comparing the expression of approximately 100 miRNAs in medaka and chicken with existing data for zebrafish and mouse, we conclude that the timing and location of miRNA expression is not strictly conserved. In some instances, differences in expression are associated with changes in miRNA copy number, genomic context, or both between species. Variation in miRNA expression is more pronounced the greater the differences in physiology, and it is enticing to speculate that changes in miRNA expression may play a role in shaping the physiological differences produced during animal development.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping