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Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato

Potato (Solanum tuberosum L.) maturity involves several important traits, including the onset of tuberization, flowering, leaf senescence, and the length of the plant life cycle. The timing of flowering and tuberization in potato is mediated by seasonal fluctuations in photoperiod and is thought to...

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Autores principales: Jing, Shenglin, Sun, Xiaomeng, Yu, Liu, Wang, Enshuang, Cheng, Zhengnan, Liu, Huimin, Jiang, Peng, Qin, Jun, Begum, Shahnewaz, Song, Botao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9237700/
https://www.ncbi.nlm.nih.gov/pubmed/35258599
http://dx.doi.org/10.1093/plphys/kiac098
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author Jing, Shenglin
Sun, Xiaomeng
Yu, Liu
Wang, Enshuang
Cheng, Zhengnan
Liu, Huimin
Jiang, Peng
Qin, Jun
Begum, Shahnewaz
Song, Botao
author_facet Jing, Shenglin
Sun, Xiaomeng
Yu, Liu
Wang, Enshuang
Cheng, Zhengnan
Liu, Huimin
Jiang, Peng
Qin, Jun
Begum, Shahnewaz
Song, Botao
author_sort Jing, Shenglin
collection PubMed
description Potato (Solanum tuberosum L.) maturity involves several important traits, including the onset of tuberization, flowering, leaf senescence, and the length of the plant life cycle. The timing of flowering and tuberization in potato is mediated by seasonal fluctuations in photoperiod and is thought to be separately controlled by the FLOWERING LOCUS T-like (FT-like) genes SELF-PRUNING 3D (StSP3D) and SELF-PRUNING 6A (StSP6A). However, the biological relationship between these morphological transitions that occur almost synchronously remains unknown. Here, we show that StABI5-like 1 (StABL1), a transcription factor central to abscisic acid (ABA) signaling, is a binding partner of StSP3D and StSP6A, forming an alternative florigen activation complex and alternative tuberigen activation complex in a 14-3-3-dependent manner. Overexpression of StABL1 results in the early initiation of flowering and tuberization as well as a short life cycle. Using genome-wide chromatin immunoprecipitation sequencing and RNA-sequencing, we demonstrate that AGAMOUS-like and GA 2-oxidase 1 genes are regulated by StABL1. Phytohormone profiling indicates an altered gibberellic acid (GA) metabolism and that StABL1-overexpressing plants are insensitive to the inhibitory effect of GA with respect to tuberization. Collectively, our results suggest that StABL1 functions with FT-like genes to promote flowering and tuberization and consequently life cycle length in potato, providing insight into the pleiotropic functioning of the FT gene.
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spelling pubmed-92377002022-06-29 Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato Jing, Shenglin Sun, Xiaomeng Yu, Liu Wang, Enshuang Cheng, Zhengnan Liu, Huimin Jiang, Peng Qin, Jun Begum, Shahnewaz Song, Botao Plant Physiol Research Articles Potato (Solanum tuberosum L.) maturity involves several important traits, including the onset of tuberization, flowering, leaf senescence, and the length of the plant life cycle. The timing of flowering and tuberization in potato is mediated by seasonal fluctuations in photoperiod and is thought to be separately controlled by the FLOWERING LOCUS T-like (FT-like) genes SELF-PRUNING 3D (StSP3D) and SELF-PRUNING 6A (StSP6A). However, the biological relationship between these morphological transitions that occur almost synchronously remains unknown. Here, we show that StABI5-like 1 (StABL1), a transcription factor central to abscisic acid (ABA) signaling, is a binding partner of StSP3D and StSP6A, forming an alternative florigen activation complex and alternative tuberigen activation complex in a 14-3-3-dependent manner. Overexpression of StABL1 results in the early initiation of flowering and tuberization as well as a short life cycle. Using genome-wide chromatin immunoprecipitation sequencing and RNA-sequencing, we demonstrate that AGAMOUS-like and GA 2-oxidase 1 genes are regulated by StABL1. Phytohormone profiling indicates an altered gibberellic acid (GA) metabolism and that StABL1-overexpressing plants are insensitive to the inhibitory effect of GA with respect to tuberization. Collectively, our results suggest that StABL1 functions with FT-like genes to promote flowering and tuberization and consequently life cycle length in potato, providing insight into the pleiotropic functioning of the FT gene. Oxford University Press 2022-03-08 /pmc/articles/PMC9237700/ /pubmed/35258599 http://dx.doi.org/10.1093/plphys/kiac098 Text en © The Author(s) 2022. Published by Oxford University Press on behalf of American Society of Plant Biologists. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Jing, Shenglin
Sun, Xiaomeng
Yu, Liu
Wang, Enshuang
Cheng, Zhengnan
Liu, Huimin
Jiang, Peng
Qin, Jun
Begum, Shahnewaz
Song, Botao
Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato
title Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato
title_full Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato
title_fullStr Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato
title_full_unstemmed Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato
title_short Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato
title_sort transcription factor stabi5-like 1 binding to the flowering locus t homologs promotes early maturity in potato
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9237700/
https://www.ncbi.nlm.nih.gov/pubmed/35258599
http://dx.doi.org/10.1093/plphys/kiac098
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