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  • Title: Comparative profiling of microRNAs in the winged and wingless English grain aphid, Sitobion avenae (F.) (Homoptera: Aphididae).
    Author: Li X, Zhang F, Coates B, Zhang Y, Zhou X, Cheng D.
    Journal: Sci Rep; 2016 Oct 20; 6():35668. PubMed ID: 27762301.
    Abstract:
    MicroRNAs (miRNAs) are short single-stranded non-coding RNAs that regulate gene expression, particularly during development. In this study, 345 miRNAs were identified from the English green aphid, Sitobion avenae (F.), of which 168 were conserved and 177 were S. avenae-specific. Quantitative comparison of miRNA expression levels indicated that 16 and 12 miRNAs were significantly up-regulated in winged and wingless S. avenae small RNA libraries, respectively. Differential expression of these miRNAs was confirmed by real-time quantitative RT-PCR validation. The putative transcript targets for these candidate miRNAs were predicted based on sequences from a model species Drosophila melanogaster and four aphid species Acyrthosiphon pisum, Myzus persicae, Toxoptera citricida, and Aphis gosspii. Gene Ontology and KEGG pathway analyses shed light on the potential functions of these miRNAs in the regulation of genes involved in the metabolism, development and wing polyphenism of S. avenae.
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