PIL transcription factors directly interact with SPLs and repress tillering/branching in plants

PIL transcription factors directly interact with SPLs and repress tillering/branching in plants

© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 233(2022), 3 vom: 01. Feb., Seite 1414-1425
1. Verfasser: Zhang, Lichao (VerfasserIn)
Weitere Verfasser: He, Guanhua, Li, Yaping, Yang, Ziyi, Liu, Tianqi, Xie, Xianzhi, Kong, Xiuying, Sun, Jiaqiang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't PHYTOCHROME-INTERACTING FACTOR-LIKE (PIL) SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) TEOSINTE BRANCHED1 (TB1) rice tillering wheat Plant Proteins Transcription Factors mehr... Phytochrome 11121-56-5
Beschreibung
Zusammenfassung:© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.
Tillering is an important parameter of plant architecture in cereal crops. In this study, we identified the PHYTOCHROME-INTERACTING FACTOR-LIKE (PIL) family transcription factors as new repressors of tillering in cereal crops. Using biochemical and genetic approaches, we explore the roles of TaPIL1 in regulating wheat plant architecture. We found that the PIL protein TaPIL1 controls tiller number in wheat. Overexpression of TaPIL1 reduces wheat tiller number; additionally, overexpression of TaPIL1-SUPERMAN repression domain increases wheat tiller number. Furthermore, we show that TaPIL1 activates the transcriptional expression of wheat TEOSINTE BRANCHED1 (TaTB1); moreover, TaPIL1 physically interacts with wheat SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (TaSPL)3/17, which are activators of TaTB1 transcription. In rice, overexpression and loss-of-function mutations of OsPIL11 reduce or increase tiller number by regulating the expression of OsTB1. In Arabidopsis, we demonstrate that PHYTOCHROME-INTERACTING FACTOR 4 interacts with SPL9 to inhibit shoot branching. This study reveals that PIL family transcription factors directly interact with SPLs and play an important role in repressing tillering/branching in plants
Beschreibung:Date Completed 24.03.2022
Date Revised 24.03.2022
published: Print-Electronic
Citation Status MEDLINE
ISSN:1469-8137
DOI:10.1111/nph.17872