Effect of various factors such as habitat, growth period, and commercial specification on antitussive effect of Siraitia grosvenorii Screening of reference genes in Siraitia grosvenorii and spatio-temporal expression analysis of 3-hydroxy-3-methylglutaryl coenzyme A Comparative analysis of chemical constituents in different parts of Siraitia grosvenorii using UPLC-MS combined with pattern recognition Cryopreservation of test-tube shoot tips of Siraitia grosvenorii by vitrification and plant regeneration ISSR analysis of genetic background of triploid female and diploid male strains of Siraitia grosvenorii