ZHOU Yu-qing, DU Pei-lin, FU Peng, et al. Optimization of ISSR-PCR Reaction System and Primers Screening in [J]. Chinese journal of experimental traditional medical formulae, 2014, 20(21): 95-99.
ZHOU Yu-qing, DU Pei-lin, FU Peng, et al. Optimization of ISSR-PCR Reaction System and Primers Screening in [J]. Chinese journal of experimental traditional medical formulae, 2014, 20(21): 95-99. DOI: 10.13422/j.cnki.syfjx.2014210095.
Objective: To establish a suitable inter-simple sequence repeat (ISSR)-polymerase chain reaction (PCR) system for analysis of genetic differences in Nerviliae fordii. Method: The ISSP-PCR was optimized using orthogonal design of five factors (dNTP
template DNA
primer
Mg2+
Taq DNA polymerase) at four levels. Single factor analysis was conducted using Duncan's new multiple range method. Result: An optimum ISSR-PCR reaction system established for N. fordii was as follows:20 μL ISSR-PCR system contained 60 ng template DNA
2.0 μL of 10×PCR buffer
1.0 U Taq polymerase
225 μmol·L-1 dNTP mix
2.5 mmol·L-1 of Mg2+
0.4 μmol·L-1 of primers. Sixteen ISSR primers with stable amplification and abundant polymorphism were selected from 100 ISSR primers. Conclusion: The optimized and established ISSR reaction system is stable and credible according to the testing results of 24 samples of N. fordii
which provides methodology basis for the genetic analysis of N. fordii.