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ERAMOSA controls lateral branching in snapdragon

Plant forms display a wide variety of architectures, depending on the number of lateral branches, internode elongation and phyllotaxy. These are in turn determined by the number, the position and the fate of the Axillary Meristems (AMs). Mutants that affect AM determination during the vegetative pha...

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Autores principales: Mizzotti, Chiara, Galliani, Bianca M., Dreni, Ludovico, Sommer, Hans, Bombarely, Aureliano, Masiero, Simona
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5286501/
https://www.ncbi.nlm.nih.gov/pubmed/28145519
http://dx.doi.org/10.1038/srep41319
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author Mizzotti, Chiara
Galliani, Bianca M.
Dreni, Ludovico
Sommer, Hans
Bombarely, Aureliano
Masiero, Simona
author_facet Mizzotti, Chiara
Galliani, Bianca M.
Dreni, Ludovico
Sommer, Hans
Bombarely, Aureliano
Masiero, Simona
author_sort Mizzotti, Chiara
collection PubMed
description Plant forms display a wide variety of architectures, depending on the number of lateral branches, internode elongation and phyllotaxy. These are in turn determined by the number, the position and the fate of the Axillary Meristems (AMs). Mutants that affect AM determination during the vegetative phase have been isolated in several model plants. Among these genes, the GRAS transcription factor LATERAL SUPPRESSOR (Ls) plays a pivotal role in AM determination during the vegetative phase. Hereby we characterize the phylogenetic orthologue of Ls in Antirrhinum, ERAMOSA (ERA). Our data supported ERA control of AM formation during both the vegetative and the reproductive phase in snapdragon. A phylogenetic analysis combined with an analysis of the synteny of Ls in several species strongly supported the hypothesis that ERA is a phylogenetic orthologue of Ls, although it plays a broader role. During the reproductive phase ERA promotes the establishment of the stem niche at the bract axis but, after the reproductive transition, it is antagonized by the MADS box transcription factor SQUAMOSA (SQUA). Surprisingly double mutant era squa plants display a squa phenotype developing axillary meristems, which can eventually turn into inflorescences or flowers.
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spelling pubmed-52865012017-02-06 ERAMOSA controls lateral branching in snapdragon Mizzotti, Chiara Galliani, Bianca M. Dreni, Ludovico Sommer, Hans Bombarely, Aureliano Masiero, Simona Sci Rep Article Plant forms display a wide variety of architectures, depending on the number of lateral branches, internode elongation and phyllotaxy. These are in turn determined by the number, the position and the fate of the Axillary Meristems (AMs). Mutants that affect AM determination during the vegetative phase have been isolated in several model plants. Among these genes, the GRAS transcription factor LATERAL SUPPRESSOR (Ls) plays a pivotal role in AM determination during the vegetative phase. Hereby we characterize the phylogenetic orthologue of Ls in Antirrhinum, ERAMOSA (ERA). Our data supported ERA control of AM formation during both the vegetative and the reproductive phase in snapdragon. A phylogenetic analysis combined with an analysis of the synteny of Ls in several species strongly supported the hypothesis that ERA is a phylogenetic orthologue of Ls, although it plays a broader role. During the reproductive phase ERA promotes the establishment of the stem niche at the bract axis but, after the reproductive transition, it is antagonized by the MADS box transcription factor SQUAMOSA (SQUA). Surprisingly double mutant era squa plants display a squa phenotype developing axillary meristems, which can eventually turn into inflorescences or flowers. Nature Publishing Group 2017-02-01 /pmc/articles/PMC5286501/ /pubmed/28145519 http://dx.doi.org/10.1038/srep41319 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Mizzotti, Chiara
Galliani, Bianca M.
Dreni, Ludovico
Sommer, Hans
Bombarely, Aureliano
Masiero, Simona
ERAMOSA controls lateral branching in snapdragon
title ERAMOSA controls lateral branching in snapdragon
title_full ERAMOSA controls lateral branching in snapdragon
title_fullStr ERAMOSA controls lateral branching in snapdragon
title_full_unstemmed ERAMOSA controls lateral branching in snapdragon
title_short ERAMOSA controls lateral branching in snapdragon
title_sort eramosa controls lateral branching in snapdragon
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5286501/
https://www.ncbi.nlm.nih.gov/pubmed/28145519
http://dx.doi.org/10.1038/srep41319
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