Comprehensive analysis of NAC domain transcription factor gene family in Populus trichocarpa.

BMC Plant Biology
Ruibo HuGongke Zhou

Abstract

NAC (NAM, ATAF1/2 and CUC2) domain proteins are plant-specific transcriptional factors known to play diverse roles in various plant developmental processes. NAC transcription factors comprise of a large gene family represented by more than 100 members in Arabidopsis, rice and soybean etc. Recently, a preliminary phylogenetic analysis was reported for NAC gene family from 11 plant species. However, no comprehensive study incorporating phylogeny, chromosomal location, gene structure, conserved motifs, and expression profiling analysis has been presented thus far for the model tree species Populus. In the present study, a comprehensive analysis of NAC gene family in Populus was performed. A total of 163 full-length NAC genes were identified in Populus, and they were phylogenetically clustered into 18 distinct subfamilies. The gene structure and motif compositions were considerably conserved among the subfamilies. The distributions of 120 Populus NAC genes were non-random across the 19 linkage groups (LGs), and 87 genes (73%) were preferentially retained duplicates that located in both duplicated regions. The majority of NACs showed specific temporal and spatial expression patterns based on EST frequency and microarray data analyse...Continue Reading

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Citations

Feb 22, 2011·Protein & Cell·Qingfeng ChenZhiyong Lou
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Datasets Mentioned

BETA
GSE13990

Methods Mentioned

BETA
electrophoresis
PCR

Software Mentioned

Genesis
InterProScan
HMMER
Probe Match
MEME
BLASTN
GENESTIGATOR
MEGA
SMART ( Simple Modular Architecture Research Tool )
PopGenIE

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