Type

Journal Article

Authors

Francisco Madueño
Emmanuelle Graciet
Frank Wellmer
Liina Rae
Beibei Zheng
Kevin Goslin
Antonio Serrano-Mislata

Subjects

Biology

Topics
phase expression regulation arabidopsis thaliana transcription factors physiology network gene

Regulatory interplay between LEAFY, APETALA1/CAULIFLOWER and TERMINAL FLOWER1: New insights into an old relationship. (2017)

Abstract The gene regulatory network comprised of LEAFY (LFY), APETALA1 (AP1), the AP1 paralog CAULIFLOWER (CAL), and TERMINAL FLOWER1 (TFL1) is a major determinant of the flowering process in Arabidopsis thaliana. TFL1 activity in the shoot apical meristem provides inflorescence identity while the transcription factors LFY and AP1/CAL confer floral identity to emerging floral primordia. It has been thought that LFY and AP1/CAL control the onset of flowering in part by repressing TFL1 expression in flowers. However, in the June issue of Plant Physiology, we reported that LFY and AP1 act antagonistically in the regulation of several key flowering regulators, including TFL1. Specifically, TFL1 transcription was suppressed by AP1 but promoted by LFY. Here, we present additional evidence for the role of LFY as an activator of TFL1 and propose that this regulatory activity is pivotal for the indeterminate growth of the SAM during the reproductive phase of development.
Collections Ireland -> National University of Ireland Maynooth -> PubMed

Full list of authors on original publication

Francisco Madueño, Emmanuelle Graciet, Frank Wellmer, Liina Rae, Beibei Zheng, Kevin Goslin, Antonio Serrano-Mislata

Experts in our system

1
Emmanuelle Graciet
Maynooth University
Total Publications: 15
 
2
Frank Wellmer
Trinity College Dublin
Total Publications: 28
 
3
Liina Rae
National University of Ireland Maynooth
Total Publications: 5
 
4
Beibei Zheng
National University of Ireland Maynooth
Total Publications: 3
 
5
Kevin Goslin
Maynooth University
Total Publications: 4