scholarly journals cis-Regulatory Elements and Chromatin State Coordinately Control Temporal and Spatial Expression of FLOWERING LOCUS T in Arabidopsis

2010 ◽  
Vol 22 (5) ◽  
pp. 1425-1440 ◽  
Author(s):  
Jessika Adrian ◽  
Sara Farrona ◽  
Julia J. Reimer ◽  
Maria C. Albani ◽  
George Coupland ◽  
...  
Keyword(s):  
Regulatory Elements ◽  
Chromatin State ◽  
Flowering Locus T ◽  
Spatial Expression ◽  
Temporal And Spatial ◽  
Flowering Locus

scholarly journals Characterization and Activity Analyses of the FLOWERING LOCUS T Promoter in Gossypium Hirsutum

2019 ◽  
Vol 20 (19) ◽  
pp. 4769 ◽  
Author(s):  
Na Sang ◽  
Darun Cai ◽  
Chao Li ◽  
Yuqiang Sun ◽  
Xianzhong Huang
Keyword(s):  
Gossypium Hirsutum ◽  
Regulatory Elements ◽  
Proximal Promoter ◽  
Activity Levels ◽  
Loss Of Function ◽  
Flowering Locus T ◽  
Promoter Regions ◽  
Core Motif ◽  
Late Flowering ◽  
Flowering Locus

Flowering transition is a crucial development process in cotton (Gossypium hirsutum L.), and the flowering time is closely correlated with the timing of FLOWERING LOCUS T (FT) expression. However, the mechanism underlying the coordination of various cis-regulatory elements in the FT promoter of cotton has not been determined. In this study, a 5.9-kb promoter of FT was identified from cotton. A bioinformatics analysis showed that multiple insertion–deletion sites existed in the 5.9-kb promoter. Different expression levels of a reporter gene, and the induction by sequential deletions in GhFT promoter, demonstrated that 1.8-kb of the GhFT promoter was stronger than 4.2-, 4.8-, and 5.9-kb promoter fragments. The binding sites of the CONSTANS (CO) and NUCLEAR FACTOR Y transcription factors were located within the 1.0-kb sequence upstream of the FT transcription start site. A large number of repeat segments were identified in proximal promoter regions (−1.1 to −1.4 kb). A complementation analysis of deletion constructs between 1.0 and 1.8 kb of G. hirsutum, Gossypium arboretum, and Gossypium raimondii FT promoters revealed that the 1.0-kb fragment significantly rescued the late-flowering phenotype of the Arabidopsis FT loss-of-function mutant ft-10, whereas the 1.8-kb promoter only slightly rescued the late-flowering phenotype. Furthermore, the conserved CORE motif in the cotton FT promoter is an atypical TGTG(N2-3)ATG, but the number of arbitrary bases between TGTG and ATG is uncertain. Thus, the proximal FT promoter region might play an important role affecting the activity levels of FT promoters in cotton flowering.

7 Temporal and spatial expression of cNgn1 and cNgn2 in the developing chick retina.

2001 ◽  
Vol 199 (1-2) ◽  
pp. 219-219
Author(s):  
D. LeROUEDEC ◽  
M. CHEUNG ◽  
P. J. SCOTTING ◽  
P. M. WIGMORE
Keyword(s):  
Spatial Expression ◽  
Chick Retina ◽  
Temporal And Spatial

scholarly journals Gammaherpesvirus infection modulates the temporal and spatial expression of SCGB1A1 (CCSP) and BPIFA1 (SPLUNC1) in the respiratory tract

2014 ◽  
Vol 95 (6) ◽  
pp. 610-624 ◽  
Author(s):  
Gail H Leeming ◽  
Anja Kipar ◽  
David J Hughes ◽  
Lynne Bingle ◽  
Elaine Bennett ◽  
...  
Keyword(s):  
Respiratory Tract ◽  
Spatial Expression ◽  
Temporal And Spatial

scholarly journals A novel deletion in FLOWERING LOCUS T modulates flowering time in winter oilseed rape

2021 ◽  
Author(s):  
Paul Vollrath ◽  
Harmeet S. Chawla ◽  
Sarah V. Schiessl ◽  
Iulian Gabur ◽  
HueyTyng Lee ◽  
...  
Keyword(s):  
Association Mapping ◽  
Flowering Time ◽  
Oilseed Rape ◽  
Major Effect ◽  
Structural Variants ◽  
Winter Oilseed Rape ◽  
Flowering Locus T ◽  
Winter Type ◽  
Long Read ◽  
Flowering Locus

Abstract Key message A novel structural variant was discovered in the FLOWERING LOCUS T orthologue BnaFT.A02 by long-read sequencing. Nested association mapping in an elite winter oilseed rape population revealed that this 288 bp deletion associates with early flowering, putatively by modification of binding-sites for important flowering regulation genes. Abstract Perfect timing of flowering is crucial for optimal pollination and high seed yield. Extensive previous studies of flowering behavior in Brassica napus (canola, rapeseed) identified mutations in key flowering regulators which differentiate winter, semi-winter and spring ecotypes. However, because these are generally fixed in locally adapted genotypes, they have only limited relevance for fine adjustment of flowering time in elite cultivar gene pools. In crosses between ecotypes, the ecotype-specific major-effect mutations mask minor-effect loci of interest for breeding. Here, we investigated flowering time in a multiparental mapping population derived from seven elite winter oilseed rape cultivars which are fixed for major-effect mutations separating winter-type rapeseed from other ecotypes. Association mapping revealed eight genomic regions on chromosomes A02, C02 and C03 associating with fine modulation of flowering time. Long-read genomic resequencing of the seven parental lines identified seven structural variants coinciding with candidate genes for flowering time within chromosome regions associated with flowering time. Segregation patterns for these variants in the elite multiparental population and a diversity set of winter types using locus-specific assays revealed significant associations with flowering time for three deletions on chromosome A02. One of these was a previously undescribed 288 bp deletion within the second intron of FLOWERING LOCUS T on chromosome A02, emphasizing the advantage of long-read sequencing for detection of structural variants in this size range. Detailed analysis revealed the impact of this specific deletion on flowering-time modulation under extreme environments and varying day lengths in elite, winter-type oilseed rape.

scholarly journals A Norway Spruce FLOWERING LOCUS T Homolog Is Implicated in Control of Growth Rhythm in Conifers

2007 ◽  
Vol 144 (1) ◽  
pp. 248-257 ◽  
Author(s):  
Niclas Gyllenstrand ◽  
David Clapham ◽  
Thomas Källman ◽  
Ulf Lagercrantz
Keyword(s):  
Norway Spruce ◽  
Flowering Locus T ◽  
Growth Rhythm ◽  
Flowering Locus

scholarly journals Chilling of Dormant Buds Hyperinduces FLOWERING LOCUS T and Recruits GA-Inducible 1,3-β-Glucanases to Reopen Signal Conduits and Release Dormancy in Populus

2011 ◽  
Vol 23 (1) ◽  
pp. 130-146 ◽  
Author(s):  
Päivi L.H. Rinne ◽  
Annikki Welling ◽  
Jorma Vahala ◽  
Linda Ripel ◽  
Raili Ruonala ◽  
...  
Keyword(s):  
Flowering Locus T ◽  
Flowering Locus
Sign in / Sign up

Export Citation Format

Share Document