Cloning and sequence analysis of Farnesyl pyrophosphate synthase gene in a mangrove tree Sonneratia alba Cloning and sequence analysis of Farnesyl pyrophosphate synthase gene in Siraitia grosvenorii Analysis on codon bias of farnesyl pyrophosphate synthase gene in Astragalus membranaceus Cloning and bioinformatic analysis of FPPS gene from Paeonia lactiflora Cloning and sequence analysis of Farnesyl pyrophosphate synthase gene in Siraitia grosvenorii Triterpene biosynthesis in Euphorbia pekinensis induced by methyl jasmonate