Genome-Wide Analysis of BURP Domain-Containing Genes in Populus trichocarpa

• Published in: Journal of integrative plant biology Vol. 53; no. 9; pp. 743 - 755
• Main Authors: Shao, Yuanhua, Wei, Guo, Wang, Ling, Dong, Qing, Zhao, Yang, Chen, Beijiu, Xiang, Yan
• Format: Journal Article
• Language: English
• Published: Melbourne, Australia Blackwell Publishing Asia 01.09.2011; Key Laboratory of Biomass improvement and Conversion, Anhui Agriculture University, Hefei 230036, China; Laboratory of Modem Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China%Key Laboratory of Biomass improvement and Conversion, Anhui Agriculture University, Hefei 230036, China%Laboratory of Modem Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
• Subjects: abiotic stress; Amino Acid Motifs; Amino Acid Sequence; amino acid sequences; bioinformatics; BURP gene; chromosomes; Chromosomes, Plant - genetics; corn; Databases, Genetic; Expressed Sequence Tags; Gene Expression Profiling; Gene Expression Regulation, Plant; genes; Genes, Plant - genetics; Molecular Sequence Data; Phylogeny; Physical Chromosome Mapping; Plant Proteins - chemistry; Plant Proteins - classification; Plant Proteins - genetics; Populus - genetics; Populus balsamifera subsp. trichocarpa; Populus trichocarpa; Protein Structure, Tertiary; proteins; rice; Sequence Alignment; Sequence Analysis, Protein; soybeans; Stress, Physiological - genetics; 亲缘关系; 基因组分析; 序列比对; 打嗝; 期望最大化; 杨树; 物理位置; 蛋白质序列; BURP gene; bioinformatics; abiotic stress; Populus trtchocarpa
• ISSN: 1672-9072; 1744-7909
• DOI: 10.1111/j.1744-7909.2011.01068.x

BURP domain‐containing proteins have a conserved structure and are found extensively in plants. The functions of the proteins in this family are diverse, but remain unknown in Populus trichocarpa. In the present study, a complete genome of P. trichocarpa was analyzed bioinformatically. A total of 18 BURP family genes, named PtBURPs, were identified and characterized according to their physical positions on the P. trichocarpa chromosomes. A phylogenetic tree was generated from alignments of PtBURP protein sequences, while phylogenetic relationships were also examined between PtBURPs and BURP family genes in other plants, including rice, soybean, maize and sorghum. BURP genes in P. trichocarpa were classified into five classes, namely PG1β‐like, BNM2‐like, USP‐like, RD22‐like and BURP V. The multiple expectation maximization for motif elicitation (MEME) and multiple protein sequence alignments of PtBURPs were also performed. Results from the transcript level analyses of 10 PtBURP genes under different stress conditions revealed the expression patterns in poplar and led to a discussion on genome duplication and evolution, expression profiles and function of PtBURP genes.