Structure, evolution and function of the bi-directionally transcribed iab-4/iab-8 microRNA locus in arthropods.
Structure, evolution and function of the bi-directionally transcribed iab-4/iab-8 microRNA locus in arthropods.
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DOI:
10.1093/nar/gks1445
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发表时间:
2013-03-01
影响因子:
14.9
通讯作者:
Ronshaugen M
中科院分区:
文献类型:
--
作者:
Hui JH;Marco A;Hunt S;Melling J;Griffiths-Jones S;Ronshaugen M
In Drosophila melanogaster, the iab-4/iab-8 locus encodes bi-directionally transcribed microRNAs that regulate the function of flanking Hox transcription factors. We show that bi-directional transcription, temporal and spatial expression patterns and Hox regulatory function of the iab-4/iab-8 locus are conserved between fly and the beetle Tribolium castaneum. Computational predictions suggest iab-4 and iab-8 microRNAs can target common sites, and cell-culture assays confirm that iab-4 and iab-8 function overlaps on Hox target sites in both fly and beetle. However, we observe key differences in the way Hox genes are targeted. For instance, abd-A transcripts are targeted only by iab-8 in Drosophila, whereas both iab-4 and iab-8 bind to Tribolium abd-A. Our evolutionary and functional characterization of a bi-directionally transcribed microRNA establishes the iab-4/iab-8 system as a model for understanding how multiple products from sense and antisense microRNAs target common sites.
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DOI:
10.1186/1758-907x-3-8
发表时间:
2012-09-27
期刊:
Silence
影响因子:
--
作者:
Marco A;Macpherson JI;Ronshaugen M;Griffiths-Jones S
通讯作者:
Griffiths-Jones S
影响因子:
14.9
作者:
Kozomara A;Griffiths-Jones S
通讯作者:
Griffiths-Jones S
影响因子:
4.4
作者:
Legeai F;Rizk G;Walsh T;Edwards O;Gordon K;Lavenier D;Leterme N;Méreau A;Nicolas J;Tagu D;Jaubert-Possamai S
通讯作者:
Jaubert-Possamai S
影响因子:
64.5
作者:
Rinn, John L.;Kertesz, Michael;Chang, Howard Y.
通讯作者:
Chang, Howard Y.
影响因子:
4.4
作者:
Liu S;Li D;Li Q;Zhao P;Xiang Z;Xia Q
通讯作者:
Xia Q