Newfound groups of bacteria are mixing up the tree of life

15 junio 2015

Bacteria, one of the three major branches of the tree of life, are a fuzzy bit of foliage. While scientists know there are many unidentified species, they have not been classified or characterized because no one can culture them. Now biologists have sequenced a community of bacteria, assembled almost 800 nearly complete genomes and found that many of them represent completely new phyla: more than 35 in all.