MicroRNA-dependent regulation of metamorphosis and identification of microRNAs in the red flour beetle, Tribolium castaneum
MicroRNA-dependent regulation of metamorphosis and identification of microRNAs in the red flour beetle, Tribolium castaneum
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赤拟谷盗变态的 MicroRNA 依赖性调节和 microRNA 的鉴定
DOI:
10.1016/j.ygeno.2017.06.001
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发表时间:
2017
期刊:
影响因子:
4.4
通讯作者:
Li Bin
中科院分区:
文献类型:
--
作者:
Wu Wei;Xiong Wenfeng;Li Chengjun;Zhai Mengfan;Li Yao;Ma Fei;Li Bin
To date, although some microRNAs (miRNAs) have been discovered in the holometabolism insectTribolium castaneum, large numbers of miRNAs still require investigation. Knocking downDicer-1(Dcr-1) andArgonaute-1(Ago-1) in late larvae impaired miRNA synthesis, affected the juvenile hormone pathway by up-regulatingMethoprene-tolerant(Met) andKrüppel-homolog1(Kr-h1) transcript levels, and resulted in a series of defects inT. castaneumdevelopment and metamorphosis. Thus, high-throughput Illumina/Solexa sequencing was performed with a mixed sample of eight key developmental stages ofT. castaneum. In total, 1154 unique miRNAs were discovered containing 274 conserved miRNAs belong to 68 miRNA families, 108 known candidate miRNAs and 772 novel miRNAs. Genome locus analysis showed that miRNA clusters are more abundant inT. castaneumthan other species. The results indicated that RNAi ofDcr-1andAgo-1inT. castaneumresulted in miRNA-induced metamorphosis defects. Furthermore, large numbers of novel miRNAs were discovered inT. castaneumand localized toT. castaneumgenome loci.