2024-03-29T04:33:52Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1636272020-12-10T17:16:45Zcom_10261_128com_10261_1col_10261_381
DIGITAL.CSIC
author
Schwager, Evelyn E.
author
Maeso, Ignacio
author
McGregor, Alistair P.
funder
University of Oxford
funder
Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil)
funder
Leverhulme Trust
funder
National Science Foundation (US)
funder
National Institutes of Health (US)
funder
German Research Foundation
funder
L'Oréal
funder
Swedish Research Council
funder
Volkswagen Foundation
funder
United Nations Educational, Scientific and Cultural Organization
funder
University of Göttingen
2018-04-13T12:54:13Z
2018-04-13T12:54:13Z
2017
BMC Biology 15(1): 62 (2017)
http://hdl.handle.net/10261/163627
10.1186/s12915-017-0399-x
http://dx.doi.org/10.13039/501100003385http://dx.doi.org/10.13039/100000001http://dx.doi.org/10.13039/501100000275http://dx.doi.org/10.13039/100000002http://dx.doi.org/10.13039/501100000769http://dx.doi.org/10.13039/501100003593http://dx.doi.org/10.13039/501100001659http://dx.doi.org/10.13039/100005243
28756775
[Background]: 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. [Results]: 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 neo-functionalization and/or sub-functionalization since their duplication. [Conclusions]: Our results reveal that spiders and scorpions are likely the descendants of a polyploid ancestor that lived more than 450 MYA. Given the extensive morphological diversity and ecological adaptations found among these animals, rivaling those of vertebrates, our study of the ancient WGD event in Arachnopulmonata provides a new comparative platform to explore common and divergent evolutionary outcomes of polyploidization events across eukaryotes.
eng
openAccess
Hox genes
Parasteatoda tepidariorum
Genome
Centruroides sculpturatus
Gene duplication
Evolution
The house spider genome reveals an ancient whole-genome duplication during arachnid evolution
artículo
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URL
https://digital.csic.es/bitstream/10261/163627/1/housevolution.pdf
File
MD5
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application/pdf
housevolution.pdf