Kepler-452b revolves around a sun much like our own.
October 17, 2000|
The genome of Mycoplasma genitalium is so far the smallest discovered for any free-living organism, so it has been used as a starting point for defining a minimal genome. Transposon mutagenesis and comparison with a second mycoplasma have further narrowed down the list of genes. Now Glass et al. announce the sequencing of a third mycoplasma, the mucosal pathogen Ureaplasma urealyticum, in the 12 October Nature (Nature 2000, 407:757-762). Their results suggest that there is more than one version