A CYC/TB1-type TCP transcription factor controls spikelet meristem identity in barley

A CYC/TB1-type TCP transcription factor controls spikelet meristem identity in barley

© The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 71(2020), 22 vom: 31. Dez., Seite 7118-7131
1. Verfasser: Shang, Yi (VerfasserIn)
Weitere Verfasser: Yuan, Lu, Di, Zhaocan, Jia, Yong, Zhang, Zhenlan, Li, Sujuan, Xing, Liping, Qi, Zengjun, Wang, Xiaoyun, Zhu, Jinghuan, Hua, Wei, Wu, Xiaojian, Zhu, Minqiu, Li, Gang, Li, Chengdao
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't BRANCHED AND INDETERMINATE SPIKELET 1 (BDI1) Barley TCP transcription factor deletion determinacy inflorescence architecture map-based cloning spikelet meristem mehr... transcriptome sequencing (RNA-Seq) virus-induced gene silencing (VIGS) Plant Proteins Transcription Factors
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500 |a Citation Status MEDLINE 
520 |a © The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com. 
520 |a Barley possesses a branchless, spike-shaped inflorescence where determinate spikelets attach directly to the main axis, but the developmental mechanism of spikelet identity remains largely unknown. Here we report the functional analysis of the barley gene BRANCHED AND INDETERMINATE SPIKELET 1 (BDI1), which encodes a TCP transcription factor and plays a crucial role in determining barley inflorescence architecture and spikelet development. The bdi1 mutant exhibited indeterminate spikelet meristems that continued to grow and differentiate after producing a floret meristem; some spikelet meristems at the base of the spike formed two fully developed seeds or converted to branched spikelets, producing a branched inflorescence. Map-based cloning analysis showed that this mutant has a deletion of ~600 kb on chromosome 5H containing three putative genes. Expression analysis and virus-induced gene silencing confirmed that the causative gene, BDI1, encodes a CYC/TB1-type TCP transcription factor and is highly conserved in both wild and cultivated barley. Transcriptome and regulatory network analysis demonstrated that BDI1 may integrate regulation of gene transcription cell wall modification and known trehalose-6-phosphate homeostasis to control spikelet development. Together, our findings reveal that BDI1 represents a key regulator of inflorescence architecture and meristem determinacy in cereal crop plants 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a BRANCHED AND INDETERMINATE SPIKELET 1 (BDI1) 
650 4 |a Barley 
650 4 |a TCP transcription factor 
650 4 |a deletion 
650 4 |a determinacy 
650 4 |a inflorescence architecture 
650 4 |a map-based cloning 
650 4 |a spikelet meristem 
650 4 |a transcriptome sequencing (RNA-Seq) 
650 4 |a virus-induced gene silencing (VIGS) 
650 7 |a Plant Proteins  |2 NLM 
650 7 |a Transcription Factors  |2 NLM 
700 1 |a Yuan, Lu  |e verfasserin  |4 aut 
700 1 |a Di, Zhaocan  |e verfasserin  |4 aut 
700 1 |a Jia, Yong  |e verfasserin  |4 aut 
700 1 |a Zhang, Zhenlan  |e verfasserin  |4 aut 
700 1 |a Li, Sujuan  |e verfasserin  |4 aut 
700 1 |a Xing, Liping  |e verfasserin  |4 aut 
700 1 |a Qi, Zengjun  |e verfasserin  |4 aut 
700 1 |a Wang, Xiaoyun  |e verfasserin  |4 aut 
700 1 |a Zhu, Jinghuan  |e verfasserin  |4 aut 
700 1 |a Hua, Wei  |e verfasserin  |4 aut 
700 1 |a Wu, Xiaojian  |e verfasserin  |4 aut 
700 1 |a Zhu, Minqiu  |e verfasserin  |4 aut 
700 1 |a Li, Gang  |e verfasserin  |4 aut 
700 1 |a Li, Chengdao  |e verfasserin  |4 aut 
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