[Establishment of molecular markers linked to sex in Schisandra sphenanthera].

Objective: To establish the gender-related RAPD markers in Schisandra sphenanthera.

Methods: The genomic DNA was extracted from the young leaves of male and female Schisandra sphenanthera by modified CTAB method. The gender differences in the genome were studied by RAPD which was optimized by the single factor and orthogonal experiments.

Results: 25 microL total volume included Mg2+ of 2.5 mmol/L, dNTPs of 0.08 mmol/L, primer of 0.6 micromol/L, Taq enzyme 1.5 U, DNA template 60 ng, annealing temperature 41.3 degrees C, 35 cycles. In 400 random primers, only a male specific band 541 bp was generated by S353.

Conclusion: The marker can be used as the basis of gender identification.