A modern circadian clock in the common angiosperm ancestor of monocots and eudicots.
The circadian clock enhances fitness through temporal organization of plant gene expression, metabolism and physiology. Two recent studies, one in BMC Evolutionary Biology, demonstrate through phylogenetic analysis of the CCA1/LHY and TOC1/PRR gene families that the common ancestor of monocots and eudicots had components sufficient to construct a circadian clock consisting of multiple interlocked feedback loops.
McClung
C Robertson
CR
Department of Biological Sciences, 6044 Gilman Laboratories, Dartmouth College, Hanover, New Hampshire 03755, USA. mcclung@dartmouth.edu
D029681:Arabidopsis Proteins / Q000235:genetics / Q000502:physiology; D001683:Biological Clocks / Q000235:genetics* / Q000502:physiology; D002940:Circadian Rhythm / Q000235:genetics / Q000502:physiology*; D019143:Evolution, Molecular; D019684:Magnoliopsida / Q000235:genetics / Q000502:physiology*; D008954:Models, Biological; D005810:Multigene Family / Q000235:genetics* / Q000502:physiology; D010802:Phylogeny; D014157:Transcription Factors / Q000235:genetics / Q000502:physiology
D029681:Arabidopsis Proteins; C114425:CCA1 protein, Arabidopsis; C411822:TOC1 protein, Arabidopsis; D014157:Transcription Factors
Plant Cell. 2010 Mar;22(3):594-605
20233950
Mol Cells. 2007 Apr 30;23(2):145-53
17464190
Plant Cell. 2007 Nov;19(11):3462-73
18055606
Annu Rev Plant Biol. 2009;60:357-77
19575587
Science. 2009 Mar 13;323(5920):1481-5
19286557
Science. 2003 Nov 7;302(5647):1049-53
14605371
Plant Cell Physiol. 2003 Nov;44(11):1229-36
14634161
Science. 2005 Nov 11;310(5750):1031-4
16284181
BMC Evol Biol. 2010 May 01;10:126
20433765
Genetics. 2009 Sep;183(1):325-35
19581446
Theor Appl Genet. 2007 Sep;115(5):721-33
17634915
Curr Opin Plant Biol. 2008 Oct;11(5):514-20
18678522
Annu Rev Genet. 2006;40:409-48
17094740
PLoS Genet. 2008 Feb;4(2):e14
18248097
Genome Biol. 2008;9(8):R130
18710561
New Phytol. 2009 Mar;181(4):808-819
19140936