title: COR27 and COR28 encode nighttime repressors integrating Arabidopsis circadian clock and cold response.
abstract: It was noted that circadian components function in plant adaptation to diurnal temperature cycles and freezing tolerance. Our genome-wide transcriptome analysis revealed that evening-phased COR27 and COR28 mainly repress the transcription of clock-associated evening genes PRR5, ELF4 and cold-responsive genes. Chromatin immunoprecipitation indicated that CCA1 is recruited to the site containing EE elements of COR27 and COR28 promoters in a temperature-dependent way. Further genetic analysis shows COR28 is essential for the circadian function of PRR9 and PRR7. Together, our results support a role of COR27 and COR28 as nighttime repressors integrating circadian clock and plant cold stress responses.
authors.affiliation: Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Sciences, Hebei Normal University; Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, 050024, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.affiliation: Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Sciences, Hebei Normal University; Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, 050024, China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Cui
authors.affiliation: Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Sciences, Hebei Normal University; Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, 050024, China.
authors.forename: Chunsheng
authors.initials: C
authors.lastname: Zhao
authors.affiliation: Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Sciences, Hebei Normal University; Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, 050024, China.
authors.forename: Liyan
authors.initials: L
authors.lastname: Shi
authors.affiliation: Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Sciences, Hebei Normal University; Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, 050024, China.
authors.forename: Guowei
authors.initials: G
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Fenglong
authors.initials: F
authors.lastname: Sun
authors.affiliation: State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Cao
authors.affiliation: Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Sciences, Hebei Normal University; Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, 050024, China.
authors.forename: Li
authors.initials: L
authors.lastname: Yuan
authors.affiliation: Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Sciences, Hebei Normal University; Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, 050024, China.
authors.forename: Qiguang
authors.initials: Q
authors.lastname: Xie
authors.affiliation: Hebei Key Laboratory of Molecular and Cellular Biology, Key Laboratory of Molecular and Cellular Biology of Ministry of Education, College of Life Sciences, Hebei Normal University; Hebei Collaboration Innovation Center for Cell Signaling, Shijiazhuang, 050024, China.
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Xu
mesh_terms: D017360:Arabidopsis / Q000502:physiology*; D029681:Arabidopsis Proteins / Q000378:metabolism*; D057906:Circadian Clocks; D003080:Cold Temperature; D008954:Models, Biological; D012097:Repressor Proteins / Q000378:metabolism*; D036226:Seedlings / Q000378:metabolism
chemical_list: D029681:Arabidopsis Proteins; C000620558:COR27 protein, Arabidopsis; C000620559:COR28 protein, Arabidopsis; D012097:Repressor Proteins