Sangam: A Confluence of Knowledge Streams

A small set of conserved genes, including sp5 and Hox, are activated by Wnt signaling in the posterior of planarians and acoels

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dc.contributor Whitehead Institute for Biomedical Research
dc.contributor Massachusetts Institute of Technology. Department of Biology
dc.creator Tewari, Aneesha G.
dc.creator Owen, Jared H.
dc.creator Petersen, Christian P.
dc.creator Wagner, Daniel E.
dc.creator Reddien, Peter W.
dc.date 2020-05-07T14:04:42Z
dc.date 2020-05-07T14:04:42Z
dc.date 2019-10
dc.date 2020-01-28T13:43:48Z
dc.date.accessioned 2023-03-01T18:06:41Z
dc.date.available 2023-03-01T18:06:41Z
dc.identifier 1553-7404
dc.identifier 1553-7390
dc.identifier https://hdl.handle.net/1721.1/125092
dc.identifier Tewari, Aneesha G. et al. “A small set of conserved genes, including sp5 and Hox, are activated by Wnt signaling in the posterior of planarians and acoels.” PLOS genetics 15 (2019): e1008401 © 2019 The Author(s)
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/278788
dc.description Wnt signaling regulates primary body axis formation across the Metazoa, with high Wnt signaling specifying posterior identity. Whether a common Wnt-driven transcriptional program accomplishes this broad role is poorly understood. We identified genes acutely affected after Wnt signaling inhibition in the posterior of two regenerative species, the planarian Schmidtea mediterranea and the acoel Hofstenia miamia, which are separated by >550 million years of evolution. Wnt signaling was found to maintain positional information in muscle and regional gene expression in multiple differentiated cell types. sp5, Hox genes, and Wnt pathway components are down-regulated rapidly after β-catenin RNAi in both species. Brachyury, a vertebrate Wnt target, also displays Wnt-dependent expression in Hofstenia. sp5 inhibits trunk gene expression in the tail of planarians and acoels, promoting separate tail-trunk body domains. A planarian posterior Hox gene, Post-2d, promotes normal tail regeneration. We propose that common regulation of a small gene set–Hox, sp5, and Brachyury–might underlie the widespread utilization of Wnt signaling in primary axis patterning across the Bilateria.
dc.format application/pdf
dc.language en
dc.publisher Public Library of Science (PLoS)
dc.relation 10.1371/journal.pgen.1008401
dc.relation PLOS genetics
dc.rights Creative Commons Attribution 4.0 International license
dc.rights https://creativecommons.org/licenses/by/4.0/
dc.source PLoS
dc.title A small set of conserved genes, including sp5 and Hox, are activated by Wnt signaling in the posterior of planarians and acoels
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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