title: Genomic analysis and expression investigation of caleosin gene family in Arabidopsis.
abstract: Caleosin is a common lipid-droplet surface protein, which has the ability to bind calcium. Arabidopsis (Arabidopsis thaliana) is considered a model organism in plant researches. Although there are growing researches about caleosin in the past few years, a systemic analysis of caleosins in Arabidopsis is still scarce. In this study, a comprehensive investigation of caleosins in Arabidopsis was performed by bioinformatics methods. Firstly, eight caleosins in Arabidopsis are divided into two types, L-caleosin and H-caleosin, according to their molecular weights, and these two types of caleosin have many differences in characteristics. Secondly, phylogenetic tree result indicates that L-caleosin may evolve from H-caleosin. Thirdly, duplication pattern analysis shows that segmental and tandem duplication are main reasons for Arabidopsis caleosin expansion with the equal part. Fourthly, the expression profiles of caleosins are also investigated in silico in different organs and under various stresses and hormones. In addition, based on promoter analysis, caleosin may be involved in calcium signal transduction and lipid accumulation. Thus, the classification and expression analysis of caleosin genes in Arabidopsis provide facilities to the research of phylogeny and functions in this gene family.
authors.affiliation: College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China. Electronic address: shenyue1020@163.com.
authors.forename: Yue
authors.initials: Y
authors.lastname: Shen
authors.affiliation: College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China. Electronic address: xiejun1029@gmail.com.
authors.forename: Jun
authors.initials: J
authors.lastname: Xie
authors.affiliation: College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China. Electronic address: liurd1991@gmail.com.
authors.forename: Rui-Dan
authors.initials: RD
authors.lastname: Liu
authors.affiliation: College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China. Electronic address: nixuefeng123456@126.com.
authors.forename: Xue-Feng
authors.initials: XF
authors.lastname: Ni
authors.affiliation: College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China. Electronic address: xuehaowang1226@gmail.com.
authors.forename: Xue-Hao
authors.initials: XH
authors.lastname: Wang
authors.affiliation: College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China. Electronic address: lizhxi@nwsuaf.edu.cn.
authors.forename: Zhi-Xi
authors.initials: ZX
authors.lastname: Li
authors.affiliation: College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China. Electronic address: zhangm@nwsuaf.edu.cn.
authors.forename: Meng
authors.initials: M
authors.lastname: Zhang
mesh_terms: D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000235:genetics* / Q000378:metabolism; D029681:Arabidopsis Proteins / Q000145:classification / Q000235:genetics* / Q000378:metabolism; D020013:Calcium Signaling / Q000235:genetics; D002135:Calcium-Binding Proteins / Q000145:classification / Q000235:genetics* / Q000378:metabolism; D002874:Chromosome Mapping; D019143:Evolution, Molecular; D020440:Gene Duplication; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D023281:Genomics; D050356:Lipid Metabolism / Q000235:genetics; D008969:Molecular Sequence Data; D005810:Multigene Family; D010802:Phylogeny; D010938:Plant Oils / Q000378:metabolism; D010940:Plant Proteins / Q000145:classification / Q000235:genetics* / Q000378:metabolism; D011401:Promoter Regions, Genetic; D017386:Sequence Homology, Amino Acid
chemical_list: D029681:Arabidopsis Proteins; D002135:Calcium-Binding Proteins; D010938:Plant Oils; D010940:Plant Proteins; C402836:caleosin protein, Sesamum indicum
keywords: Caleosin; Classification; Evolution; Expression; Function