Min Chen1, Steven Penfield2. 1. Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK. 2. Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK. steven.penfield@jic.ac.uk.
Abstract
Plants integrate seasonal signals, including temperature and day length, to optimize the timing of developmental transitions. Seasonal sensing requires the activity of two proteins, FLOWERING LOCUS C (FLC) and FLOWERING LOCUS T (FT), that control certain developmental transitions in plants. During reproductive development, the mother plant uses FLC and FT to modulate progeny seed dormancy in response to temperature. We found that for regulation of seed dormancy, FLC and FT function in opposite configuration to how those same genes control time to flowering. For seed dormancy, FT regulates seed dormancy through FLC gene expression and regulates chromatin state by activating antisense FLC transcription. Thus, in Arabidopsis the same genes controlled in opposite format regulate flowering time and seed dormancy in response to the temperature changes that characterize seasons.
Plants integrate seasonal signals, including temperature and day length, to optimize the timing of developmental transitions. Seasonal sensing requires the activity of two proteins, FLOWERING LOCUS C (FLC) and FLOWERING LOCUS T (FT), that control certain developmental transitions in plants. During reproductive development, the mother plant uses FLC and FT to modulate progeny seed dormancy in response to temperature. We found that for regulation of seed dormancy, FLC and FT function in opposite configuration to how those same genes control time to flowering. For seed dormancy, FT regulates seed dormancy through FLC gene expression and regulates chromatin state by activating antisense FLC transcription. Thus, in Arabidopsis the same genes controlled in opposite format regulate flowering time and seed dormancy in response to the temperature changes that characterize seasons.
Authors: Fabián E Vaistij; Thiago Barros-Galvão; Adama F Cole; Alison D Gilday; Zhesi He; Yi Li; David Harvey; Tony R Larson; Ian A Graham Journal: Proc Natl Acad Sci U S A Date: 2018-07-30 Impact factor: 11.205
Authors: Stella Quiroz; Juan Carlos Yustis; Elva C Chávez-Hernández; Tania Martínez; Maria de la Paz Sanchez; Adriana Garay-Arroyo; Elena R Álvarez-Buylla; Berenice García-Ponce Journal: Int J Mol Sci Date: 2021-05-27 Impact factor: 5.923