J Integr Plant Biol ›› 2013, Vol. 55 ›› Issue (7): 663-676.DOI: 10.1111/jipb.12085

• Research Articles • Previous Articles    

Analyses of the NAC Transcription Factor Gene Family in Gossypium raimondii Ulbr.: Chromosomal Location, Structure, Phylogeny, and Expression Patterns

Haihong Shang, Wei Li, Changsong Zou and Youlu Yuan*   

  1. State Key Laboratory of Cotton Biology, Institute of Cotton Research, the Chinese Academy of Agricultural Sciences, Anyang, Henan, China
  • Received:2013-04-01 Accepted:2013-06-02 Published:2013-07-01
  • About author:*Corresponding author: Tel: +86 372 2525371; Fax: +86 372 2562256; E-mail: youluyuan@hotmail.com

Abstract:

NAC domain proteins are plant-specific transcription factors known to play diverse roles in various plant developmental processes. In the present study, we performed the first comprehensive study of the NAC gene family in Gossypium raimondii Ulbr., incorporating phylogenetic, chromosomal location, gene structure, conserved motif, and expression profiling analyses. We identified 145 NAC transcription factor (NAC-TF) genes that were phylogenetically clustered into 18 distinct subfamilies. Of these, 127 NAC-TF genes were distributed across the 13 chromosomes, 80 (55%) were preferentially retained duplicates located in both duplicated regions and six were located in triplicated chromosomal regions. The majority of NAC-TF genes showed temporal-, spatial-, and tissue-specific expression patterns based on transcriptomic and qRT-PCR analyses. However, the expression patterns of several duplicate genes were partially redundant, suggesting the occurrence of sub-functionalization during their evolution. Based on their genomic organization, we concluded that genomic duplications contributed significantly to the expansion of the NAC-TF gene family in G. raimondii. Comprehensive analysis of their expression profiles could provide novel insights into the functional divergence among members of the NAC gene family in G. raimondii.

 Shang H, Li W, Zou C, Yuan Y (2013) Analyses of the NAC transcription factor gene family in Gossypium raimondii Ulbr.: Chromosomal location, structure, phylogeny and expression patterns. J. Integr. Plant Biol. 55(7), 663–676.

Key words: Cotton, expression patterns, NAC, phylogeny, structure

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2020 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q
网站备案号:京ICP备16067583号-22