Indian Society of Genetics & Plant Breeding

Identification, characterization, and comparative transcriptome analysis of TCP family genes in foxtail millet

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Teosinte Branched 1, Cycloidea, and Proliferating Cell
Factors (TCP), belonging to a plant-specific transcription
factors family, play versatile roles in multiple processes of
plant growth and development. In the present study, 18
SiTCP genes were identified and phylogenetic analysis
suggested that the SiTCP genes were divided into two main
classes, which was supported by multiple sequence
alignment of the core TCP domain. To study the evolution
of foxtail millet and rice, Sorghum bicolor, Arabidopsis, we
compared the domain distribution and exon/intron
structure of TCP proteins of four species. The results
showed that R domain had expansion in Arabidopsis, while
the other three monocots had relative conserved domains
distribution. Furthermore, all four plant species had a
conserved exon/intron structure during evolutionary
process. Comparative transcript profiles of TCP genes in
similar tissues among foxtail millet, rice and Arabidopsis
indicated that the TCP genes of monocots (foxtail millet
and rice) exhibited similar expression patterns among the
same clade, which were different from eudicot Arabidopsis.
The present study is the first analyses of the TCP gene
family in foxtail millet, will provide valuable information for
functional analyses of this important gene family.

Keywords: TCP protein, foxtail millet (Setaria italica), phylogeny, TCP genes expression profile


Year: 2018
Volume: 78
Issue: 1
Article DOI: 10.5958/0975-6906.2018.00012.3
Print ISSN: 0019-5200
Online ISSN: 0975-6906


Yanwei Cheng info_circle
Jinxin Qiao info_circle
Xusheng Zhao info_circle

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