期刊
PLANT CELL AND ENVIRONMENT
卷 41, 期 7, 页码 1715-1725出版社
WILEY
DOI: 10.1111/pce.13130
关键词
FLOWERING LOCUS T; germination; inflorescence; temperature; wheat
资金
- BBSRC [BB/P016855/1, BBS/E/J/000C0677]
- P7 Food, Agriculture and Fisheries, Biotechnology (ADAPTAWHEAT) [289842]
- BBSRC [BBS/E/J/000C0617, BBS/E/J/000CA471, BBS/E/J/000PR9787, BBS/E/J/000PR9773, BBS/E/J/000CA393, BBS/E/J/000PR9788, BBS/E/J/000PR9779, BBS/E/J/000C0677, BB/N020421/1, BBS/E/J/000PR9781, BB/L027127/1, BBS/E/J/000PR9789] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/N020421/1, BBS/E/J/000C0677, BBS/E/J/000PR9788, BBS/E/J/000PR9779, BBS/E/J/000CA471, BBS/E/J/000CA393, BBS/E/J/000PR9789, BB/L027127/1, BBS/E/J/000PR9773, BBS/E/J/000PR9787, BBS/E/J/000PR9781, BBS/E/J/000C0617] Funding Source: researchfish
FLOWERING LOCUS T (FT) is a central integrator of environmental signals that regulates the timing of vegetative to reproductive transition in flowering plants. In model plants, these environmental signals have been shown to include photoperiod, vernalization, and ambient temperature pathways, and in crop species, the integration of the ambient temperature pathway remains less well understood. In hexaploid wheat, at least 5 FT-like genes have been identified, each with a copy on the A, B, and D genomes. Here, we report the characterization of FT-B1 through analysis of FT-B1 null and overexpression genotypes under different ambient temperature conditions. This analysis has identified that the FT-B1 alleles perform differently under diverse environmental conditions; most notably, the FT-B1 null produces an increase in spikelet and tiller number when grown at lower temperature conditions. Additionally, absence of FT-B1 facilitates more rapid germination under both light and dark conditions. These results provide an opportunity to understand the FT-dependent pathways that underpin key responses of wheat development to changes in ambient temperature. This is particularly important for wheat, for which development and grain productivity are sensitive to changes in temperature.
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