You can also try sarkosyl, a detergent similar to CTAB. I found sarkosyl a better choice for scaling down Song Weining Leslie Research Centre 13 Holberton Street PO Box 2282, Toowoomba, QLD 4350 Australia Phone: 61-7-46398880 Fax: 61-7-46398800 Email: weinins at dpi.qld.gov.au ---