Comparison of three different methods for isolating RNA from Oncomelania hupensis

Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control
Xu Shu-JunSun En-Tao

Abstract

To compare the effects of three kinds of Oncomelania hupensis RNA extraction methods, namely a modified SDS method, TRIzol reagent method, and CTAB method, so as to obtain an economical and efficient method for RNA extraction from O. hupensis. The modified SDS method, TRIzol reagent method and CTAB method were applied to extract the RNA from O. hupensis. A nucleic acid protein analyzer was used to measure the concentration and purity of RNA. The yields were calculated by the concentration of the products. The purity was indicated by A260/A280 and A260/A230. The quality of RNA was inspected by 1% agarose gel electrophoresis. The β-acting gene was selected as the target gene for RT-PCR analysis. The RNA yields obtained by using the three kinds of extraction methods were significantly different (F = 16 895.85, P < 0.01) according to the analysis of variance. The LSD test showed that the yields obtained by using the modified SDS method were the highest, and those obtained by the CTAB method were the lowest. The purity of RNA extracted by the CTAB method was superior to that by the other two methods, and the A260/A280 and A260/A230 ratios of the CTAB method were in the range from 1.8-2.0 and 2.0-2.2. The A260/A230 ratios of the othe...Continue Reading

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