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Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae

Three amino acid loop extension homeodomain transcription factors (TALE HD TFs) act as life cycle regulators in green algae and land plants. In mosses these regulators are required for the deployment of the sporophyte developmental program. We demonstrate that mutations in either of two TALE HD TF g...

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Autores principales: Arun, Alok, Coelho, Susana M, Peters, Akira F, Bourdareau, Simon, Pérès, Laurent, Scornet, Delphine, Strittmatter, Martina, Lipinska, Agnieszka P, Yao, Haiqin, Godfroy, Olivier, Montecinos, Gabriel J, Avia, Komlan, Macaisne, Nicolas, Troadec, Christelle, Bendahmane, Abdelhafid, Cock, J Mark
Formato: Online Artículo Texto
Lenguaje:English
Publicado: eLife Sciences Publications, Ltd 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6368402/
https://www.ncbi.nlm.nih.gov/pubmed/30644818
http://dx.doi.org/10.7554/eLife.43101
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author Arun, Alok
Coelho, Susana M
Peters, Akira F
Bourdareau, Simon
Pérès, Laurent
Scornet, Delphine
Strittmatter, Martina
Lipinska, Agnieszka P
Yao, Haiqin
Godfroy, Olivier
Montecinos, Gabriel J
Avia, Komlan
Macaisne, Nicolas
Troadec, Christelle
Bendahmane, Abdelhafid
Cock, J Mark
author_facet Arun, Alok
Coelho, Susana M
Peters, Akira F
Bourdareau, Simon
Pérès, Laurent
Scornet, Delphine
Strittmatter, Martina
Lipinska, Agnieszka P
Yao, Haiqin
Godfroy, Olivier
Montecinos, Gabriel J
Avia, Komlan
Macaisne, Nicolas
Troadec, Christelle
Bendahmane, Abdelhafid
Cock, J Mark
author_sort Arun, Alok
collection PubMed
description Three amino acid loop extension homeodomain transcription factors (TALE HD TFs) act as life cycle regulators in green algae and land plants. In mosses these regulators are required for the deployment of the sporophyte developmental program. We demonstrate that mutations in either of two TALE HD TF genes, OUROBOROS or SAMSARA, in the brown alga Ectocarpus result in conversion of the sporophyte generation into a gametophyte. The OUROBOROS and SAMSARA proteins heterodimerise in a similar manner to TALE HD TF life cycle regulators in the green lineage. These observations demonstrate that TALE-HD-TF-based life cycle regulation systems have an extremely ancient origin, and that these systems have been independently recruited to regulate sporophyte developmental programs in at least two different complex multicellular eukaryotic supergroups, Archaeplastida and Chromalveolata.
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spelling pubmed-63684022019-02-11 Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae Arun, Alok Coelho, Susana M Peters, Akira F Bourdareau, Simon Pérès, Laurent Scornet, Delphine Strittmatter, Martina Lipinska, Agnieszka P Yao, Haiqin Godfroy, Olivier Montecinos, Gabriel J Avia, Komlan Macaisne, Nicolas Troadec, Christelle Bendahmane, Abdelhafid Cock, J Mark eLife Plant Biology Three amino acid loop extension homeodomain transcription factors (TALE HD TFs) act as life cycle regulators in green algae and land plants. In mosses these regulators are required for the deployment of the sporophyte developmental program. We demonstrate that mutations in either of two TALE HD TF genes, OUROBOROS or SAMSARA, in the brown alga Ectocarpus result in conversion of the sporophyte generation into a gametophyte. The OUROBOROS and SAMSARA proteins heterodimerise in a similar manner to TALE HD TF life cycle regulators in the green lineage. These observations demonstrate that TALE-HD-TF-based life cycle regulation systems have an extremely ancient origin, and that these systems have been independently recruited to regulate sporophyte developmental programs in at least two different complex multicellular eukaryotic supergroups, Archaeplastida and Chromalveolata. eLife Sciences Publications, Ltd 2019-01-15 /pmc/articles/PMC6368402/ /pubmed/30644818 http://dx.doi.org/10.7554/eLife.43101 Text en © 2019, Arun et al http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited.
spellingShingle Plant Biology
Arun, Alok
Coelho, Susana M
Peters, Akira F
Bourdareau, Simon
Pérès, Laurent
Scornet, Delphine
Strittmatter, Martina
Lipinska, Agnieszka P
Yao, Haiqin
Godfroy, Olivier
Montecinos, Gabriel J
Avia, Komlan
Macaisne, Nicolas
Troadec, Christelle
Bendahmane, Abdelhafid
Cock, J Mark
Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae
title Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae
title_full Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae
title_fullStr Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae
title_full_unstemmed Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae
title_short Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae
title_sort convergent recruitment of tale homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae
topic Plant Biology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6368402/
https://www.ncbi.nlm.nih.gov/pubmed/30644818
http://dx.doi.org/10.7554/eLife.43101
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