Pangenome sequence tube map (IMAGE) University of California - Santa Cruz Caption The new draft pangenome reference contains 47 genomes instead of just one, and will provide a much better point of comparison than the traditional reference to find and understand the differences in our DNA. Credit National Human Genome Research Institute Usage Restrictions No restrictions. License Public Domain 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.