Bonjour ! We are looking for a plasmid bearing Saccharomyces cerevisiae GAL10 gene to replace the gene of our reference strain which is unfortunally gal-... and we don't want to do crosses to maintain the same genetic background. Thank you for your help. Odile Ozier-Kalogeropoulos (quiet difficult! :-).....) CGM CNRS 91190 Gif sur Yvette FRANCE