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Trichoplax, the simplest known animal, contains an estrogen-related receptor: Implications for the evolution of vertebrate and invertebrate estrogen receptors
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- University of California, San Diego
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- Document Type:
- Manuscript
- Date:
- Received 06 May 2008 21:45 UTC; Posted 06 May 2008
- Subjects:
- Developmental Biology, Evolution and Ecology, Bioinformatics
- Abstract:
Although, as their names imply, vertebrate and invertebrate estrogen receptors [ERs] and estrogen-related receptors [ERRs] are related transcription factors, their evolutionary relationships to each other are not fully understood. We searched recently sequenced genome of Trichoplax, the simplest known animal, and genomes from three lophotrochozoans: Capitella, a worm, Helobdella robusta, a leech, and Lottia gigantea, a snail, to elucidate the origins and evolution of ERs and ERRs. BLAST found an ERR in Trichoplax, but no ER. BLAST searches of the lophotrochozaons found ERRs in all three and invertebrate ERs in Capitella and Lottia, but not in Helobdella. These database searches and a phylogenetic analyses indicate that invertebrate ERs arose in a protostome, and vertebrate ERs arose later in deuterostome.
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- This document is licensed to the public under the Creative Commons Attribution 3.0 License
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Baker, Michael. Trichoplax, the simplest known animal, contains an estrogen-related receptor: Implications for the evolution of vertebrate and invertebrate estrogen receptors. Available from Nature Precedings <http://hdl.handle.net/10101/npre.2008.1863.1> (2008)
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