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The cotton HD-Zip transcription factor GhHB12 regulates flowering time and plant architecture via the GhmiR157-GhSPL pathway

Domestication converts perennial and photoperiodic ancestral cotton to day-neutral cotton varieties, and the selection of short-season cotton varieties is one of the major objectives of cotton breeding. However, little is known about the mechanism of flowering time in cotton. Here, we report a cotto...

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Autores principales: He, Xin, Wang, Tianyi, Xu, Zheng, Liu, Nian, Wang, Lichen, Hu, Qin, Luo, Xiangyin, Zhang, Xianlong, Zhu, Longfu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6292863/
https://www.ncbi.nlm.nih.gov/pubmed/30564750
http://dx.doi.org/10.1038/s42003-018-0234-0
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author He, Xin
Wang, Tianyi
Xu, Zheng
Liu, Nian
Wang, Lichen
Hu, Qin
Luo, Xiangyin
Zhang, Xianlong
Zhu, Longfu
author_facet He, Xin
Wang, Tianyi
Xu, Zheng
Liu, Nian
Wang, Lichen
Hu, Qin
Luo, Xiangyin
Zhang, Xianlong
Zhu, Longfu
author_sort He, Xin
collection PubMed
description Domestication converts perennial and photoperiodic ancestral cotton to day-neutral cotton varieties, and the selection of short-season cotton varieties is one of the major objectives of cotton breeding. However, little is known about the mechanism of flowering time in cotton. Here, we report a cotton HD-ZIP I-class transcription factor (GhHB12) specifically expressed in axillary buds, which antagonisticlly interacts with GhSPL10/13 to repress the expression of GhFT, GhFUL, and GhSOC1, resulting in bushy architecture and delayed flowering under long-day conditions. We found that GhHB12-mediated ancestral upland cotton phenotypes (bushy architecture and delayed flowering) could be rescued under short-day conditions. We showed that overexpressing of GhrSPL10 partially rescues the bushy architecture and delayed flowering phenotypes, while overexpression of GhmiR157 reinforced these phenotypes in GhHB12-overexpressing plants. This study defines a regulatory module which regulates cotton architecture, phase transition and could be applied in the breeding of early maturing cotton varieties.
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spelling pubmed-62928632018-12-18 The cotton HD-Zip transcription factor GhHB12 regulates flowering time and plant architecture via the GhmiR157-GhSPL pathway He, Xin Wang, Tianyi Xu, Zheng Liu, Nian Wang, Lichen Hu, Qin Luo, Xiangyin Zhang, Xianlong Zhu, Longfu Commun Biol Article Domestication converts perennial and photoperiodic ancestral cotton to day-neutral cotton varieties, and the selection of short-season cotton varieties is one of the major objectives of cotton breeding. However, little is known about the mechanism of flowering time in cotton. Here, we report a cotton HD-ZIP I-class transcription factor (GhHB12) specifically expressed in axillary buds, which antagonisticlly interacts with GhSPL10/13 to repress the expression of GhFT, GhFUL, and GhSOC1, resulting in bushy architecture and delayed flowering under long-day conditions. We found that GhHB12-mediated ancestral upland cotton phenotypes (bushy architecture and delayed flowering) could be rescued under short-day conditions. We showed that overexpressing of GhrSPL10 partially rescues the bushy architecture and delayed flowering phenotypes, while overexpression of GhmiR157 reinforced these phenotypes in GhHB12-overexpressing plants. This study defines a regulatory module which regulates cotton architecture, phase transition and could be applied in the breeding of early maturing cotton varieties. Nature Publishing Group UK 2018-12-13 /pmc/articles/PMC6292863/ /pubmed/30564750 http://dx.doi.org/10.1038/s42003-018-0234-0 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
He, Xin
Wang, Tianyi
Xu, Zheng
Liu, Nian
Wang, Lichen
Hu, Qin
Luo, Xiangyin
Zhang, Xianlong
Zhu, Longfu
The cotton HD-Zip transcription factor GhHB12 regulates flowering time and plant architecture via the GhmiR157-GhSPL pathway
title The cotton HD-Zip transcription factor GhHB12 regulates flowering time and plant architecture via the GhmiR157-GhSPL pathway
title_full The cotton HD-Zip transcription factor GhHB12 regulates flowering time and plant architecture via the GhmiR157-GhSPL pathway
title_fullStr The cotton HD-Zip transcription factor GhHB12 regulates flowering time and plant architecture via the GhmiR157-GhSPL pathway
title_full_unstemmed The cotton HD-Zip transcription factor GhHB12 regulates flowering time and plant architecture via the GhmiR157-GhSPL pathway
title_short The cotton HD-Zip transcription factor GhHB12 regulates flowering time and plant architecture via the GhmiR157-GhSPL pathway
title_sort cotton hd-zip transcription factor ghhb12 regulates flowering time and plant architecture via the ghmir157-ghspl pathway
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6292863/
https://www.ncbi.nlm.nih.gov/pubmed/30564750
http://dx.doi.org/10.1038/s42003-018-0234-0
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