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Natural haplotypes of FLM non-coding sequences fine-tune flowering time in ambient spring temperatures in Arabidopsis.
eLife 6:e22114 (2017)
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Forschungsdaten
DOI
PMC
Cool ambient temperatures are major cues determining flowering time in spring. The mechanisms promoting or delaying flowering in response to ambient temperature changes are only beginning to be understood. In Arabidopsis thaliana, FLOWERING LOCUS M (FLM) regulates flowering in the ambient temperature range and FLM is transcribed and alternatively spliced in a temperature-dependent manner. We identify polymorphic promoter and intronic sequences required for FLM expression and splicing. In transgenic experiments covering 69% of the available sequence variation in two distinct sites, we show that variation in the abundance of the FLM-ß splice form strictly correlate (R2 = 0.94) with flowering time over an extended vegetative period. The FLM polymorphisms lead to changes in FLM expression (PRO2+) but may also affect FLM intron 1 splicing (INT6+). This information could serve to buffer the anticipated negative effects on agricultural systems and flowering that may occur during climate change.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
A. Thaliana ; Plant Biology; Quantitative Trait Loci; Rna-binding Protein; Mads-box Gene; Regulatory Elements; In-vivo; Thaliana; Genome; Vernalization; Dna; Plants
ISSN (print) / ISBN
2050-084X
e-ISSN
2050-084X
Zeitschrift
eLife
Quellenangaben
Band: 6,
Artikelnummer: e22114
Verlag
eLife Sciences Publications
Verlagsort
Cambridge
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed