Irregularity of Work and Circadian Rhythmicity: Implications for Airline Operations

1989 ◽  
pp. 275-286
Author(s):  
A. N. Nicholson ◽  
M. B. Spencer
Keyword(s):  
Circadian Rhythmicity ◽  
Airline Operations

Role of miRNA in circadian rhythmicity: recent progress

2011 ◽  
Vol 31 (10) ◽  
pp. 1137-1139
Author(s):  
Qing-min WANG ◽  
Hui WAN ◽  
Fen-zhou SHI ◽  
Jun SHEN ◽  
Qiu-hong LIU
Keyword(s):  
Recent Progress ◽  
Circadian Rhythmicity

scholarly journals Transcriptomal dissection of soybean circadian rhythmicity in two geographically, phenotypically and genetically distinct cultivars

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Yanlei Yue ◽  
Ze Jiang ◽  
Enoch Sapey ◽  
Tingting Wu ◽  
Shi Sun ◽  
...  
Keyword(s):  
Gene Expression ◽  
Circadian Clock ◽  
Chromosome Structure ◽  
Clock Genes ◽  
Expression Profiles ◽  
Circadian Rhythmicity ◽  
Rna Seq ◽  
Night Time ◽  
Time Points ◽  
Circadian Clock Genes

Abstract Background In soybean, some circadian clock genes have been identified as loci for maturity traits. However, the effects of these genes on soybean circadian rhythmicity and their impacts on maturity are unclear. Results We used two geographically, phenotypically and genetically distinct cultivars, conventional juvenile Zhonghuang 24 (with functional J/GmELF3a, a homolog of the circadian clock indispensable component EARLY FLOWERING 3) and long juvenile Huaxia 3 (with dysfunctional j/Gmelf3a) to dissect the soybean circadian clock with time-series transcriptomal RNA-Seq analysis of unifoliate leaves on a day scale. The results showed that several known circadian clock components, including RVE1, GI, LUX and TOC1, phase differently in soybean than in Arabidopsis, demonstrating that the soybean circadian clock is obviously different from the canonical model in Arabidopsis. In contrast to the observation that ELF3 dysfunction results in clock arrhythmia in Arabidopsis, the circadian clock is conserved in soybean regardless of the functional status of J/GmELF3a. Soybean exhibits a circadian rhythmicity in both gene expression and alternative splicing. Genes can be grouped into six clusters, C1-C6, with different expression profiles. Many more genes are grouped into the night clusters (C4-C6) than in the day cluster (C2), showing that night is essential for gene expression and regulation. Moreover, soybean chromosomes are activated with a circadian rhythmicity, indicating that high-order chromosome structure might impact circadian rhythmicity. Interestingly, night time points were clustered in one group, while day time points were separated into two groups, morning and afternoon, demonstrating that morning and afternoon are representative of different environments for soybean growth and development. However, no genes were consistently differentially expressed over different time-points, indicating that it is necessary to perform a circadian rhythmicity analysis to more thoroughly dissect the function of a gene. Moreover, the analysis of the circadian rhythmicity of the GmFT family showed that GmELF3a might phase- and amplitude-modulate the GmFT family to regulate the juvenility and maturity traits of soybean. Conclusions These results and the resultant RNA-seq data should be helpful in understanding the soybean circadian clock and elucidating the connection between the circadian clock and soybean maturity.

Real-Time Decision Optimization Platform for Airline Operations

2020 ◽  
Author(s):  
P.S.R. Weerasinghe ◽  
R.A.M.D.K. Ranasinghe ◽  
M.M.V.R.B. Mahanthe ◽  
P.G.C.B. Samarakoon ◽  
W.H. Rankothge ◽  
...  
Keyword(s):  
Real Time ◽  
Airline Operations ◽  
Decision Optimization

Developing circadian rhythmicity

2000 ◽  
Vol 24 (4) ◽  
pp. 232-242 ◽  
Author(s):  
Scott A. Rivkees ◽  
Haiping Hao
Keyword(s):  
Circadian Rhythmicity

scholarly journals Neuroendocrine Correlates of Circadian Rhythmicity in Crustaceans

1985 ◽  
Vol 25 (1) ◽  
pp. 265-274 ◽  
Author(s):  
HUGO ARÉCHIGA ◽  
JOSE LUIS CORTES ◽  
UBALDO GARCIA ◽  
LEONARDO RODRIGUEZ-SOSA
Keyword(s):  
Circadian Rhythmicity

Circadian rhythmicity and behavioral depression: II. Effects of lighting schedules

1990 ◽  
Vol 48 (1) ◽  
pp. 157-164 ◽  
Author(s):  
Karen T. Stewart ◽  
Alan M. Rosenwasser ◽  
Joel D. Levine ◽  
Donald L. McEachron ◽  
Joseph R. Volpicelli ◽  
...  
Keyword(s):  
Circadian Rhythmicity ◽  
Behavioral Depression
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