image: Life in a droplet of seawater from Transmission Electronic Microscopy (TEM) images of Ostreococcus tauri, the smallest photosynthetic eukaryote, and prasinoviruses. The squares are 1.5 μm large. The starch granule, the chloroplast and the nucleus can be identified on most micrographs of the microalgal cell. The 100 nm large prasinovirus icosahedral capsid contains its DNA. This material relates to a paper that appeared in the July 5, 2017, issue of Science Advances, published by AAAS. The paper, by R. Blanc-Mathieu at Kyoto University in Kyoto, Japan, and colleagues was titled, "Population genomics of picophytoplankton unveils novel chromosome hypervariability." view more
Credit: [Credit: GENOPHY Lab UMR7232 CNRS-UPMC TEM: ML Escande]