Genomewide analysis of LATERAL ORGAN BOUNDARIES Domain gene family in Zea mays.
The investigation of transcription factor (TF) families is a major focus of postgenomic research. The plant-specific ASYMMETRIC LEAVES2-LIKE (ASL) / LATERAL ORGAN BOUNDARIES Domain (LBD) proteins constitute a major zincfinger-like-domain transcription factor family, and regulate diverse biological processes in plants. However, little is known about LBD genes in maize (Zea mays). In this study, a total of 44 LBD genes were identified in maize genome and were phylogenetically clustered into two groups (I and II), together with LBDs from Arabidopsis. The predicted maize LBDs were distributed across all the 10 chromosomes with different densities. In addition, the gene structures of maize LBDs were analysed. The expression profiles of the maize LBD genes under normal growth conditions were analysed by microarray data and qRT-PCR. The results indicated that LBDs might be involved in various aspects of physiological and developmental processes in maize. To our knowledge, this is the first report of a genomewide analysis of the maize LBD gene family, which would provide valuable information for understanding the classification and putative functions of the gene family.
State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China. cczheng@sdau.edu.cn.
Yue-Min
YM
Zhang
Shi-Zhong
SZ
Zhang
Cheng-Chao
CC
Zheng
D020816:Amino Acid Motifs; D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000235:genetics; D002874:Chromosome Mapping; D019295:Computational Biology; D017124:Conserved Sequence; D030561:Databases, Nucleic Acid; D020869:Gene Expression Profiling; D017343:Genes, Plant; D018745:Genome, Plant; D055106:Genome-Wide Association Study; D058977:Molecular Sequence Annotation; D008969:Molecular Sequence Data; D005810:Multigene Family; D009928:Organ Specificity / Q000235:genetics; D010802:Phylogeny; D054730:Protein Interaction Domains and Motifs; D016415:Sequence Alignment; D014157:Transcription Factors / Q000235:genetics*; D003313:Zea mays / Q000235:genetics*
D014157:Transcription Factors