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Genes (Basel). 2017 Oct 24;8(10). pii: E288. doi: 10.3390/genes8100288.

Genome-Wide Identification and Structural Analysis of bZIP Transcription Factor Genes in Brassica napus.

Zhou Y1,2, Xu D3,4, Jia L5,6, Huang X7,8, Ma G9,10, Wang S11,12, Zhu M13,14, Zhang A15,16, Guan M17,18, Lu K19,20, Xu X21,22, Wang R23,24, Li J25,26, Qu C27,28.

Author information

1
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. zy18375729663@163.com.
2
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. zy18375729663@163.com.
3
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. 13594700414@163.com.
4
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. 13594700414@163.com.
5
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. jld914@126.com.
6
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. jld914@126.com.
7
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. 13108988211@163.com.
8
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. 13108988211@163.com.
9
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. mgq12358@163.com.
10
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. mgq12358@163.com.
11
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. 13699443694@sina.cn.
12
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. 13699443694@sina.cn.
13
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. zmc201789@163.com.
14
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. zmc201789@163.com.
15
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. aoxiang922101@163.com.
16
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. aoxiang922101@163.com.
17
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. lingshifengshan@foxmail.com.
18
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. lingshifengshan@foxmail.com.
19
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. drlukun@swu.edu.cn.
20
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. drlukun@swu.edu.cn.
21
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. xinfuxu@126.com.
22
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. xinfuxu@126.com.
23
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. ruiwang71@163.com.
24
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. ruiwang71@163.com.
25
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. ljn1950@swu.edu.cn.
26
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. ljn1950@swu.edu.cn.
27
Chongqing Rapeseed Engineering Research Center, College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China. drqucunmin@swu.edu.cn.
28
Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. drqucunmin@swu.edu.cn.

Abstract

The basic region/leucine zipper motif (bZIP) transcription factor family is one of the largest families of transcriptional regulators in plants. bZIP genes have been systematically characterized in some plants, but not in rapeseed (Brassica napus). In this study, we identified 247 BnbZIP genes in the rapeseed genome, which we classified into 10 subfamilies based on phylogenetic analysis of their deduced protein sequences. The BnbZIP genes were grouped into functional clades with Arabidopsis genes with similar putative functions, indicating functional conservation. Genome mapping analysis revealed that the BnbZIPs are distributed unevenly across all 19 chromosomes, and that some of these genes arose through whole-genome duplication and dispersed duplication events. All expression profiles of 247 bZIP genes were extracted from RNA-sequencing data obtained from 17 different B. napus ZS11 tissues with 42 various developmental stages. These genes exhibited different expression patterns in various tissues, revealing that these genes are differentially regulated. Our results provide a valuable foundation for functional dissection of the different BnbZIP homologs in B. napus and its parental lines and for molecular breeding studies of bZIP genes in B. napus.

KEYWORDS:

Brassica napus; bZIP transcription factors; expression patterns; phylogenetic analysis

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