Rice Diversity (image) GigaScience Caption Grains of rice reveal just a tiny proportion of the variation of traits in the over 40,000 different varieties of rice in the world. Credit This image is part of the image collection of the International Rice Research Institute (IRRI) http://irri.org Usage Restrictions This file is licensed under the Creative Commons Attribution 2.0 Generic license. (http://creativecommons.org/licenses/by/2.0/deed.en) 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.