CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2021, Vol. 43 ›› Issue (3): 392-.doi: 10.19802/j.issn.1007-9084.2021071

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Genome-wide identification and expression analysis of ZIP transporter gene family in Brassica napus


  1. 1. Hunan University of Science and Technology, Xiangtan 411201, China; 2. Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, Xiangtan 411201, China; 3. National Key Lab of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; 4. Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan 430062, China
  • Online:2021-06-28 Published:2021-07-01


    ZIP transporter gene family, which is mainly involved in absorption and transport of metal cations,and plays an important role in plant, development and response to heavy metal stress. In this study, 51 members of the ZIP gene family in Brassica napus were identified by bioinformatics method,. Tandem duplication were found in A and C subgenomes as compared with three basic species of Brassica. Using Brassica napus CV ZS11 as a reference genome, the ZIP gene family was mapped onto 17 chromosomes, and 10 motif were predicted, all of which contained ZIP domain. Moreover, the cis-regulatory elements locating at 3 kb upstream of promoter region were predicted. Based on phylogenetic tree analysis, the ZIP gene family of Brassica napus was divided into three major groups,and was conserved among the three basic species of Brassica. In addition, ZIP gene family showed tissue-specificand BnaIRT3 genes were ac⁃tively expressed in different tissues and different developmental stages. We also found that BnaIRT1.A01a was expressed in both leaves and roots of rape treated with different concentrations of cadmium, which might play an important role in response of rape to cadmium stress. These results might provide references for the subsequent biological functions of the ZIP gene family.

Key words:  , Brassica napus;ZIP gene family;cadmium;genome-wide analysis

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