The basal phylogeny of Chelicerata is one of the opaquest parts of the animal Tree of Life,
defying resolution despite application of thousands of loci and millions of sites. At the …

Deciphering the evolutionary relationships of Chelicerata (arachnids, horseshoe crabs, and
allied taxa) has proven notoriously difficult, due to their ancient rapid radiation and the …

Pioneering molecular work on chelicerate visual system development in the horseshoe crab
Limulus polyphemus surprised with the possibility that this process may not depend on the …

Gene duplication generates new genetic material that can contribute to the evolution of gene
regulatory networks and phenotypes. Duplicated genes can undergo subfunctionalization to …

Spiders are a diverse order of chelicerates that diverged from other arthropods over 500
million years ago. Research on spider embryogenesis, particularly studies using the …

Salmonid fishes have emerged as a tractable model to study whole‐genome duplications
(WGDs) as this group has undergone four rounds of WGDs. While most of the salmonid …

This perspective identifies the grand challenges in arachnid science: 1. Grasp the arachnid
species diversity. There is a need to accelerate taxonomic research to obtain a sense of …

Spiders (Araneae) have a diverse spectrum of morphologies, behaviors, and physiologies.
Attempts to understand the genomic-basis of this diversity are often hindered by their large …

Background The resurgence of interest in the comparative developmental study of
chelicerates has led to important insights, such as the discovery of a genome duplication …

Despite an abundance of gene expression surveys, comparatively little is known about Hox
gene function in Chelicerata. Previous investigations of paralogs of labial (lab) and …