部落格 - 頁 5 的 6 - DNA檢測專家

什麼是蛋白酶K? 蛋白酶K在DNA提取中有什麼作用?

部落格 / 14/01/2024

Proteinase K is an important enzyme used in molecular biology labs for digesting and removing proteins from nucleic acid preparations. […]

什麼是蛋白酶K? 蛋白酶K在DNA提取中有什麼作用? 閱讀全文 »

使用多重 PCR 檢測方法萃取 Strewbarries RNA 以鑑定六種病毒

部落格 / 23/01/2024

Background Strawberries are a type of perennial herbaceous plant in the Rose family (Rosaceae) and the Strawberry genus (Fragaria). They

使用多重 PCR 檢測方法萃取 Strewbarries RNA 以鑑定六種病毒閱讀全文 »

如何提高粗DNA萃取效率: 策略與最佳化

部落格 / 23/01/2024

Experiment design The experiment involves grinding and purifying plant materials to obtain a crude DNA extract. This extract is then

如何提高粗DNA萃取效率: 策略與最佳化閱讀全文 »

DNA聚合酶有什麼作用? 你應該知道的事情

部落格 / 11/01/2024

DNA polymerase is an enzyme that plays an important role in DNA replication and is essential for life processes. Without

DNA聚合酶有什麼作用? 你應該知道的事情閱讀全文 »

What does RNase Do? Things you should know about

部落格 / 08/03/2024

Ribonuclease, more commonly known as RNase, is an extremely important enzyme that plays a vital role in RNA metabolism within

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Conclusion Currently, gene expression studies mainly rely on qRT-PCR technology, commonly using reference genes to correct for errors introduced during sample detection. Earlier research generally assumed that housekeeping genes essential for maintaining cellular activities exhibit stable expression patterns under different conditions, being regarded as universal reference genes. However, with the advancement of high-throughput sequencing, more studies suggest that housekeeping genes are not always stable. Optimal reference genes often vary significantly among different species under different conditions. When studying the expression of target genes, using previously published reference genes without validation can lead to biased results. Hence, it's essential to reselect reference genes. In the case of the Cowpea weevil, it was found that the pairwise variation value Vn/n+1 in the GeNorm software's pairwise difference analysis was consistently less than the default value of 0.15 across different developmental stages and various tissues of adult weevils. Therefore, there is no need to include a third reference gene for data correction; the most suitable number of reference genes is two. Comprehensive assessment through △Ct, GeNorm, NormFinder, BestKeeper, and RefFinder online tool suggests using β-Act and β-Tub as internal reference genes for gene expression studies across different developmental stages of the Cowpea weevil. Similarly, for various tissues in adult weevils, β-Tub and α-Tub were recommended as internal reference genes. RPL40 was evaluated as relatively suitable for use as one of the internal reference genes in different tissues of adult Cowpea weevils. However, it appeared to be one of the least stable genes among different developmental stages of the weevils. 另一方面, GAPDH showed the least stability in expression among different tissues of adult Cowpea weevils and was also unsuitable as a reference gene for gene expression studies in different developmental stages of the weevils. Similar results were observed in other Coleopteran insects such as Colaphellus bowringi and Sympiezomias velatus (Tan et al., 2015; Li et al., 2018). This study provides accurate and reliable internal reference genes for accurately analyzing gene expression levels in different developmental stages and various tissues of the Cowpea weevil using qRT-PCR. Howev然而ther these findings apply to other experimental conditions requires further investigation. The expression of internal reference genes in the Cowpea weevil varies significantly under different experimental conditions. This study utilized five methods to evaluate the expression stability of eight candidate internal reference genes in different developmental stages and various tissues of the Cowpea weevil. The results suggest that GeNorm software calculated V2/3 gene pairwise difference values under different conditions, all of which were below the threshold of 0.15. There所以 optimal number of reference genes for studying relative gene expression is two. 具體來說, for different developmental stages of the Cowpea weevil, it is recommended to use β-Act and β-Tub as internal reference genes. 同時, for various tissues in adult weevils, β-Tub and α-Tub are recommended as internal reference genes.

研究用於牛角象鼻蟲實時熒光定量PCR參考基因的選擇

部落格 / 08/01/2024

About the research Currently used internal reference genes in qRT-PCR include various genes like ubiquitin-conjugating enzyme (UBC), ribosomal RNA (核糖核酸),

研究用於牛角象鼻蟲實時熒光定量PCR參考基因的選擇閱讀全文 »

核酸測試行業期望增長 6.8% 來自 2023 到 2033

部落格 / 05/01/2024

核酸測試行業: Rapid Growth Driven by Technological Advances and Increasing Demand for Precision Diagnostics Nucleic acid testing

核酸測試行業期望增長 6.8% 來自 2023 到 2033 閱讀全文 »

如何進行DNA測試以識別雄性和雌性鴿子? 這是最詳細的過程

部落格 / 31/12/2023

Introduction Compared to conventional sex identification methods for birds, such as cloaca inspection, laparoscopy, steroid analysis, and karyotyping, PCR-based sex

如何進行DNA測試以識別雄性和雌性鴿子? 這是最詳細的過程閱讀全文 »