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The first bacterial genome sequence was published 20 years ago. In this Timeline, Loman and Pallen review the first two decades of bacterial genome sequencing, discussing how advances in sequencing technologies and bioinformatics have furthered our understanding of the biology, diversity and evolution of bacteria.
Phages were discovered 100 years ago, and since then phage research has transformed fundamental and translational biosciences. In this Timeline, Salmond and Fineran discuss a century of phage research, describing the roles of phages in ecosystems and in driving bacterial evolution and virulence, and highlight their impact as a source of novel reagents that revolutionized molecular biology and biotechnology.