期刊
JOURNAL OF ECONOMIC ENTOMOLOGY
卷 108, 期 4, 页码 2040-2047出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/jee/tov184
关键词
brown citrus aphid; reference gene; quantitative reverse transcription PCR; agricultural pests; normalization
类别
资金
- Special Fund for Agro-scientific Research in the Public Interest [201203038]
- earmarked fund for Modern Agro-industry (Citrus) Technology Research System of China
The regulation of mRNA expression level is critical for gene expression studies. Currently, quantitative reverse transcription polymerase chain reaction (qRT-PCR) is commonly used to investigate mRNA expression level of genes under various experimental conditions. An important factor that determines the optimal quantification of qRT-PCR data is the choice of the reference gene for normalization. To advance gene expression studies in Toxoptera citricida (Kirkaldy), an important citrus pest and a main vector of the Citrus tristeza virus, we used five tools (GeNorm, NormFinder, BestKeeper, Delta Ct methods, and RefFinder) to evaluate seven candidate reference genes (elongation factor-1 alpha [EF1 alpha], beta tubulin [beta-TUB], 18S ribosomal RNA [18S], RNA polymerase II large subunit (RNAP II), beta actin (beta-ACT), alpha tubulin, and glyceraldhyde-3-phosphate dehydrogenase) under different biotic (developmental stages and wing dimorphism) and abiotic stress (thermal, starvation, and UV irradiation) conditions. The results showed that EF1 alpha and 18S were the most stable genes under various biotic states, beta-ACT and beta-TUB during thermal stress, EF1 alpha and RNAP II under starvation stress, and RNAP II, beta-ACT, and EF1 alpha under UV irradiation stress conditions. This study provides useful resources for the transcriptional profiling of genes in T. citricida and closely related aphid species.
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