RT Journal Article SR Electronic T1 The house spider genome reveals an ancient whole-genome duplication during arachnid evolution JF bioRxiv FD Cold Spring Harbor Laboratory SP 106385 DO 10.1101/106385 A1 Evelyn E. Schwager A1 Prashant P. Sharma A1 Thomas Clarke A1 Daniel J. Leite A1 Torsten Wierschin A1 Matthias Pechmann A1 Yasuko Akiyama-Oda A1 Lauren Esposito A1 Jesper Bechsgaard A1 Trine Bilde A1 Alexandra D. Buffry A1 Hsu Chao A1 Huyen Dinh A1 Harsha Vardhan Doddapaneni A1 Shannon Dugan A1 Cornelius Eibner A1 Cassandra G. Extavour A1 Peter Funch A1 Jessica Garb A1 Vanessa L. Gonzalez A1 Sam Griffiths-Jones A1 Yi Han A1 Cheryl Hayashi A1 Maarten Hilbrant A1 Daniel S.T. Hughes A1 Ralf Janssen A1 Sandra L. Lee A1 Ignacio Maeso A1 Shwetha C. Murali A1 Donna M. Muzny A1 Rodrigo Nunes da Fonseca A1 Jiaxin Qu A1 Matthew Ronshaugen A1 Christoph Schomburg A1 Anna Schönauer A1 Angelika Stollewerk A1 Montserrat Torres-Oliva A1 Natascha Turetzek A1 Bram Vanthournout A1 Jack Werren A1 Carsten Wolff A1 Kim C. Worley A1 Gregor Bucher A1 Richard A. Gibbs A1 Jonathan Coddington A1 Hiroki Oda A1 Mario Stanke A1 Nadia A. Ayoub A1 Nikola-Michael Prpic A1 Jean-François Flot A1 Nico Posnien A1 Stephen Richards A1 Alistair P. McGregor YR 2017 UL http://biorxiv.org/content/early/2017/02/08/106385.abstract AB The duplication of genes can occur through various mechanisms and is thought to make a major contribution to the evolutionary diversification of organisms. There is increasing evidence for a large-scale duplication of genes in some chelicerate lineages including two rounds of whole genome duplication (WGD) in horseshoe crabs. To investigate this further we sequenced and analyzed the genome of the common house spider Parasteatoda tepidariorum. We found pervasive duplication of both coding and non-coding genes in this spider, including two clusters of Hox genes. Analysis of synteny conservation across the P. tepidariorum genome suggests that there has been an ancient WGD in spiders. Comparison with the genomes of other chelicerates, including that of the newly sequenced bark scorpion Centruroides sculpturatus, suggests that this event occurred in the common ancestor of spiders and scorpions and is probably independent of the WGDs in horseshoe crabs. Furthermore, characterization of the sequence and expression of the Hox paralogs in P. tepidariorum suggests that many have been subject to neofunctionalization and subfunctionalization since their duplication, and therefore may have contributed to the diversification of spiders and other pulmonate arachnids.