Wine Tasting (IMAGE) Genetics Society of America Caption The type of yeast used to ferment wine affects its flavor. But genome sequencing shows many wine yeast strains are almost genetically identical. Credit Helen Page Photography Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.