J Integr Plant Biol. ›› 2011, Vol. 53 ›› Issue (9): 743-755.DOI: 10.1111/j.1744-7909.2011.01068.x

• Plant-environmental Interactions • Previous Articles     Next Articles

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

Yuanhua Shao1, Guo Wei1, Ling Wang1, Qing Dong2, Yang Zhao2, Beijiu Chen2 and Yan Xiang1,2*   

  1. 1Lab of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
    2Key Lab of Biomass Improvement and Conversion, Anhui Agriculture University, Hefei 230036, China
  • Received:2011-04-27 Accepted:2011-07-07 Published:2011-07-18
  • About author:*Corresponding author. Tel: +86 55 1578 1786; Fax: +86 55 1578 602; E-mail: xiangyanahau@sina.com


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.

Shao Y, Wei G, Wang L, Dong Q, Zhao Y, Chen B and Xiang Y (2011) Genome-wide analysis of BURP domain-containing genes in Populus trichocarpa. J. Integr. Plant Biol. 53(9), 743–755.

Key words: abiotic stress, bioinformatics, BURP gene, Populus trichocarpa

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