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Springer Science and Business Media LLC Scientific Reports 13(1)
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    초록·키워드

    Studies examining differentially expressed genes and gene silencing by RNA interference (RNAi) require a set of stably expressed reference genes for accurate normalization. The biting midge Culicoides sonorensis is an important vector of livestock pathogens and is often used as a model species for biting midge research. Here, we examine the stable expression of six candidate reference genes in C. sonorensis: actin, β-tubulin, glyceraldehyde 3-phosphate dehydrogenase (GAPDH), ribosomal protein subunit (RPS) 18, vacuolar ATPase subunit A (VhaA), and elongation factor 1-beta (EF1b). Gene expression was assessed under seven conditions, including cells treated with double-stranded RNA (dsRNA), 3rd and 4th instar larvae treated with dsRNA, six developmental stages, four adult female body parts or tissue groups, and females injected with bluetongue virus or vesicular stomatitis virus. Stable gene expression was assessed using RefFinder, NormFinder, geNorm, and BestKeeper. The ranked results for each analysis tool under each condition and a comprehensive ranking for each condition are presented. The data show that optimal reference genes vary between conditions and that just two reference genes were necessary for each condition. These findings provide reference genes for use under these conditions in future studies using real-time quantitative PCR to evaluate gene expression in C. sonorensis.

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