Comprehensive survey and evolutionary analysis of genome-wide miRNA genes from ten diploid Oryza species.

ABSTRACT:

Background

MicroRNAs (miRNAs) are non-coding RNAs that play versatile roles in post-transcriptional gene regulation. Although much is known about their biogenesis, and gene regulation very little is known about their evolutionary relation among the closely related species.

Result

All the orthologous miRNA genes of Oryza sativa (japonica) from 10 different Oryza species were identified, and the evolutionary changes among these genes were analysed. Significant differences in the expansion of miRNA gene families were observed across the Oryza species. Analysis of the nucleotide substitution rates indicated that the mature sequences show the least substitution rates among the different regions of miRNA genes, and also show a very much less substitution rates as compared to that

SUBMITTER: Ganie SA 

PROVIDER: S-EPMC5594537 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature