Many groups of closely related species have reticulate phylogenies. Recent genomic
analyses are showing this in many insects and vertebrates, as well as in microbes and …

The discovery of the Archaea and the proposal of the three-domains 'universal'tree, based
on ribosomal RNA and core genes mainly involved in protein translation, catalysed new …

The nature of the last universal common ancestor (LUCA), its age and its impact on the Earth
system have been the subject of vigorous debate across diverse disciplines, often based on …

Microbial taxonomy is increasingly influenced by genome-based computational methods.
Yet such analyses can be complex and require expert knowledge. Here we introduce TYGS …

Understanding of the phylogeny and interrelationships of the genera within the order
'Enterobacteriales' has proven difficult using the 16S rRNA gene and other single-gene or …

INTRODUCTION Bacteria are the most diverse and abundant cellular organisms on Earth,
and in recent years environmental genomics has revealed the existence of an enormous …

Taxonomy relies on three key elements: characterization, classification and nomenclature.
All three elements are dynamic fields, but each step depends on the one which precedes it …

The bacterial pangenome was introduced in 2005 and, in recent years, has been the subject
of many studies. Thanks to progress in next-generation sequencing methods, the …

All known life forms trace back to a last universal common ancestor (LUCA) that witnessed
the onset of Darwinian evolution. One can ask questions about LUCA in various ways, the …

Bacterial genomes are remarkably stable from one generation to the next but are plastic on
an evolutionary time scale, substantially shaped by horizontal gene transfer, genome …