Research Article

Identification of Genes Related to the Key Regulatory Circuit of Circadian Clock in Legume Plant  

Zongfei Li1,2,3,4 , Mengdie Cai1,2 , Zhenpeng Liu1 , Jie Zhang1,2 , Fang Wei1,2 , Xuanjun Fang1,2,3,4
1 Institute of Life Science, Jiyang College of Zhejiang A&F University, Zhuji, 311800, China
2 Cuixi Academy of Biotechnology, Zhuji, 311800, China
3 Hainan Institute of Tropical Agricultural Resources, Sanya, 572025, China
4 College of Life Sciences and Technology, Guangxi University, Nanning, 530005, China
Author    Correspondence author
Legume Genomics and Genetics, 2017, Vol. 8, No. 1   doi: 10.5376/lgg.2017.08.0001
Received: 28 Feb., 2017    Accepted: 28 Mar., 2017    Published: 15 Apr., 2017
© 2017 BioPublisher Publishing Platform
This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Li Z.F., Cai M.D., Liu Z.P., Zhang J., Wei F., and Fang X.J., 2017, Identification of genes related to the key regulatory circuit of circadian clock in legume plant, Legume Genomics and Genetics, 8(1): 1-11 (doi: 10.5376/lgg.2017.08.0001)


In order to reveal the evolution of the circadian clock regulation network in legume of three species (Medicago truncatula, Lotus japonicus and Glycine max). We find the regulation factor of the circadian clock of Arabidopsis thaliana through the Geneontology (GO), at the same time, according to the relevant literature, the regulation factor was supplemented and verified. Then regulation factor was obtained at the genome-wide level and Medicago truncatula, Lotus japonicus and Glycine max in the three species for comparison, identification of the corresponding direct homologous gene, analysis of the conserved functional domains, multiple sequence alignment, phylogenetic tree construction and evolution analysis and gene re-annotation. This study identified 108 Glycine max circadian clock related candidate genes, 51 Lotus japonicus circadian clock related candidate genes, 34 Medicago truncatula circadian clock related candidate genes. We selected LHY/CCA1, PRR and CHE genes from the candidate genes of the identified orthologous genes to construct 3 molecular phylogenetic trees, analysis showed that the circadian clock regulation pathway in Arabidopsis and legume of the three species occurred different degree of differentiation, especially in some key components such as direct homologous gene of the circadian clock regulates and the key genes of the florescence control. It has certain guidance and reference value for the researching of the circadian clock control network of the legume in the experimental stage.

Legume; Circadian clock; Regulation; Gene; Identification
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