Taking different developmental stages seeds of Camellia oleifera named ' HS' and ' WC1 ' as materi- als, oil content, fatty acid composition and expression pattern of key genes in fatty acid metabolism way have been analyzed. The results showed that the expression regularity of acyl carrier protein gene ( CoACP), stearoyl desaturase genes (CoSAD) and oleate desaturase gene (CoFAD2) in Camellia oleifera seed were related to oil - tea seeds' ma- ture degree more than varieties; The reproductive development period of ' HS' was longer ...