title: Genome-wide analysis of the WRKY gene family in physic nut (Jatropha curcas L.).
abstract: The WRKY proteins, which contain highly conserved WRKYGQK amino acid sequences and zinc-finger-like motifs, constitute a large family of transcription factors in plants. They participate in diverse physiological and developmental processes. WRKY genes have been identified and characterized in a number of plant species. We identified a total of 58 WRKY genes (JcWRKY) in the genome of the physic nut (Jatropha curcas L.). On the basis of their conserved WRKY domain sequences, all of the JcWRKY proteins could be assigned to one of the previously defined groups, I-III. Phylogenetic analysis of JcWRKY genes with Arabidopsis and rice WRKY genes, and separately with castor bean WRKY genes, revealed no evidence of recent gene duplication in JcWRKY gene family. Analysis of transcript abundance of JcWRKY gene products were tested in different tissues under normal growth condition. In addition, 47 WRKY genes responded to at least one abiotic stress (drought, salinity, phosphate starvation and nitrogen starvation) in individual tissues (leaf, root and/or shoot cortex). Our study provides a useful reference data set as the basis for cloning and functional analysis of physic nut WRKY genes.
authors: Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, PR China.
authors: Wangdan
authors: W
authors: Xiong
authors: Xueqin
authors: X
authors: Xu
authors: Lin
authors: L
authors: Zhang
authors: Pingzhi
authors: P
authors: Wu
authors: Yaping
authors: Y
authors: Chen
authors: Meiru
authors: M
authors: Li
authors: Huawu
authors: H
authors: Jiang
authors: Guojiang
authors: G
authors: Wu
mesh_terms: D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000235:genetics / Q000502:physiology; D055864:Droughts; D020440:Gene Duplication; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D031286:Jatropha / Q000235:genetics* / Q000502:physiology; D008969:Molecular Sequence Data; D005810:Multigene Family; D012275:Oryza / Q000235:genetics / Q000502:physiology; D010802:Phylogeny; D010940:Plant Proteins / Q000145:classification / Q000235:genetics* / Q000502:physiology; D018517:Plant Roots / Q000235:genetics; D018749:RNA, Plant / Q000032:analysis; D012965:Sodium Chloride / Q000494:pharmacology; D013312:Stress, Physiological; D014157:Transcription Factors / Q000145:classification / Q000235:genetics* / Q000502:physiology
chemical_list: D010940:Plant Proteins; D018749:RNA, Plant; D014157:Transcription Factors; D012965:Sodium Chloride