Comparison of different methods for isolating total RNA from bulblet of Fritillaria anhuiensis

Objective: To optimize a simple and effective method for total RNA extraction from bulblet of Fritillaria anhuiensis.Method: Four methods,i.e.guanidine isothiocyanate,bentonite,modified SDS/phenol and the RNAiso plus,were used to extract total RNA from bulblet of F.anhuiensis.Then the results of the extraction were compared and analyzed by electrophoresis detection and RT-PCR verification.Result: The total RNA extracted by bentonite method were clear and no dispersion,the integrity of the RNA was well,and there was no obvious contamination with DNA and other impurities,was suitable for RT-PCR test.Conclusion: The bentonite method is quick,economic,and efficient for total RNA extraction from bulblet of F.anhuiensis.