J Integr Plant Biol. ›› 2007, Vol. 49 ›› Issue (6): 885-897.DOI: 10.1111/j.1744-7909.2007.00509.x

Special Issue: Rice Genomics and Agriculture

• Omics & Epigenetics • Previous Articles     Next Articles

Genome-Wide Comparative Analysis and Expression Pattern of TCP Gene Families in Arabidopsis thaliana and Oryza sativa

Xuan Yao, Hong Ma, Jian Wang and Dabing Zhang   

  • Published:2007-06-05

Abstract:

Several TCP genes have been reported to play important roles in plant development; the TCP homologs encode a plant-specific family of putative transcription factors. To understand the evolutionary relationship of TCP genes of Arabidopsis thaliana and Oryza sativa L. (hereafter called rice), we have identified 23 and 22 TCP genes in the Arabidopsis and rice genomes, respectively. Using phylogenetic analysis, we grouped these TCP genes into three classes. In addition, the motifs outside the TCP domain further support the evolutionary relationships among these genes. The genome distribution of the TCP genes strongly supports the hypothesis that genome-wide and tandem duplication contributed to the expansion of the TCP gene family. The expression pattern of the TCP genes was analyzed further, providing useful clues about the function of these genes.

Key words: Arabidopsis thaliana, expression pattern, Oryza sativa (rice), phylogenetic analysis, TCP.

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