High-throughput identification of microRNAs in Taenia hydatigena, a cestode threatening livestock breeding industry
Infection, Genetics and Evolution(2019)
摘要
Infection of Cysticercus tenuicollis, the larval stage of Taenia hydatigena, is extensively found in sheep and pigs and jeopardizes the breeding and meat industry. miRNAs are a subclass of small noncoding regulatory RNAs and closely associated with the pathogenesis and biology of parasites. Here, using HiSeq sequencing we identified 49 known and 2 potential novel miRNAs in C. tenuicollis, of which both thy-miR-71 and -87 were predominant. Using RT-qPCR, 6 selected miRNAs were validated, and thy-miR-71 and -miR-87 were confirmed to be highly expressed, with the copy number of approximately 82,340 ± 2079 and 19,580 ± 609 per 1 ng total RNA, respectively. Similar to other cestodes, T. hydatigena was predicted to have two conserved miRNA clusters thy-miR-71/2c/2b and thy-miR-4989/277, and three members of the former were confirmed to reside sequentially within the genomic region of 253 bp by PCR. The current data provide us a valuable resource for further studies of a role of miRNAs in T. hydatigena biology and infection.
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关键词
Taenia hydatigena,miRNA,Cestode
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