摘要
Polyphenols,teroens,and resinsmake it difficult to obtain high qualitygenomic DNA from rice.Four ex-traction methods were compared inour study,and CTAB precipitationwas the most practical one.Materials used were old leavesfrom Ftransgenic rice in Hainan andfresh leaves from Ftransgenic rice inKunming.Procedures of the four methodswere as follows:1.Basical method:powder 1 gold or new leaves→added 2 ml ex-traction solution(100 mmol/L
