Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato.
Transcription factor StABI5-like 1 binding to the FLOWERING LOCUS T homologs promotes early maturity in potato.
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DOI：
10.1093/plphys/kiac098
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发表时间：
2022-06-27
期刊：
影响因子：
7.4
通讯作者：
Song B
中科院分区：
文献类型：
--
作者：
Jing S;Sun X;Yu L;Wang E;Cheng Z;Liu H;Jiang P;Qin J;Begum S;Song B
马铃薯(Solanum tuberosum L.)成熟度涉及几个重要的特征，包括块茎形成、开花、叶片衰老和植物生命周期的长度。马铃薯开花和块茎形成的时间由光周期的季节波动调节，并被认为分别由开花基因类T(FT-like)基因自修剪3D(StSP3D)和自修剪6A(StSP6A)控制。然而，这些几乎同步发生的形态转变之间的生物学关系仍然未知。在这里，我们证明了StABI5-like 1(StABL1)是脱落酸(ABA)信号转导的核心转录因子，是StSP3D和StSP6A的结合伙伴，以14-3-3依赖的方式形成替代的成花素激活复合体和替代的块茎生成素激活复合体。StABL1的过表达导致开花和块茎的早期启动以及较短的生活史。利用全基因组染色质免疫沉淀测序和RNA测序，我们证明了AGAMOUS样和GA 2-氧化酶1基因受StABL1调控。植物激素谱表明赤霉酸(GA)的代谢发生了变化，并且过度表达StABL1的植物对GA对块茎形成的抑制作用不敏感。综上所述，我们的结果表明，StABL1与类FT基因一起发挥功能，促进马铃薯的开花和块茎形成，从而促进马铃薯的生活史，为深入了解FT基因的多效性提供了依据。StABI5-like 1是ABA信号转导中心的转录因子，与开花基因T-like蛋白一起促进马铃薯的早花、块茎形成和生命周期的延长。
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. StABI5-like 1, a transcription factor central to ABA signaling, functions with FLOWERING LOCUS T-like proteins to promote early flowering, tuberization, and life cycle length in potato.
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影响因子：
16.6
作者：
Balanzà V;Martínez-Fernández I;Sato S;Yanofsky MF;Kaufmann K;Angenent GC;Bemer M;Ferrándiz C
通讯作者：
Ferrándiz C
影响因子：
7.4
作者：
Li, Daibo;Zhang, Haiyan;Yu, Diqiu
通讯作者：
Yu, Diqiu
影响因子：
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作者：
FUJINO, K;KODA, Y;KIKUTA, Y
通讯作者：
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影响因子：
64.8
作者：
Kloosterman, Bjorn;Abelenda, Jose A.;Bachem, Christian W. B.
通讯作者：
Bachem, Christian W. B.
影响因子：
7.2
作者：
Kloosterman, Bjorn;Navarro, Christina;Bachem, Christian W. B.
通讯作者：
Bachem, Christian W. B.