SHARED FEATURES EMERGING. Now we are finding “the appearance among prokaryotes of precursors of structures or processes once thought to be exclusive to and universal among eukaryotes—endomembrane systems comprising the nucleus, endoplasmatic reticulum, and Golgi apparatus and a cytoskeleton involved in cellular motility, phagocytosis, and vesicular trafficking.”
http://www.pnas.org/content/112/33/10278.full