Arthropods are the most diverse animal phylum, and their phylogenetic relationships have
been debated for centuries. With the advent of molecular phylogenetics, arthropods were …

Insects comprise over half of all described animal species. Together with the Protura
(coneheads), Collembola (springtails) and Diplura (two-pronged bristletails), insects form …

We report a new web server, aLeaves (http://aleaves. cdb. riken. jp/), for homologue
collection from diverse animal genomes. In molecular comparative studies involving multiple …

Background Phylogenetic and population genetic studies often deal with multiple sequence
alignments that require manipulation or processing steps such as sequence concatenation …

Diverse bilaterian clades emerged apparently within a few million years during the early
Cambrian, and various environmental, developmental, and ecological causes have been …

Dating the tree of life is a core endeavor in evolutionary biology. Rates of evolution are
fundamental to nearly every evolutionary model and process. Rates need dates. There is …

Insects, the most diverse group of organisms, are nested within crustaceans, arguably the
most abundant group of marine animals. However, to date, no consensus has been reached …

Ecdysozoans have been key components of ecosystems since the early Cambrian, when
trilobites and soft-bodied Burgess Shale-type ecdysozoans dominated marine animal …

Chelicerata represents one of the oldest groups of arthropods, with a fossil record extending
to the Cambrian, and is sister group to the remaining extant arthropods, the mandibulates …

The relationships of major arthropod clades have long been contentious, but refinements in
molecular phylogenetics underpin an emerging consensus. Nevertheless, molecular …