The bZIP transcription factors in Liriodendron chinense: Genome-wide recognition, characteristics and cold stress response
文献类型： 外文期刊
作者： Li, Mingyue 1 ; Hwarari, Delight 1 ; Li, Yang 2 ; Ahmad, Baseer 1 ; Min, Tian 1 ; Zhang, Wenting 2 ; Wang, Jinyan 2 ; Yang, Liming 1 ;
作者机构： 1.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing, Peoples R China
2.Jiangsu Acad Agr Sci, Innovat Ctr Excellence, Nanjing, Peoples R China
3.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang, Peoples R China
关键词： Liriodendron chinense; bZIP transcription factor; phylogenetic analysis; genomic survey; cold stress response
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）
ISSN： 1664-462X
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： The basic leucine zipper (bZIP) is a transcription factor family that plays critical roles in abiotic and biotic stress responses as well as plant development and growth. A comprehensive genome-wide study in Liriodendron chinense was conducted to identify 45 bZIP transcription factors (LchibZIPs), which were divided into 13 subgroups according the phylogenetic analysis. Proteins in the same subgroup shared similar gene structures and conserved domains, and a total of 20 conserved motifs were revealed in LchibZIP proteins. Gene localization analysis revealed that LchibZIP genes were unequally distributed across 16 chromosomes, and that 4 pairs of tandem and 9 segmental gene duplications existed. Concluding that segmental duplication events may be strongly associated with the amplification of the L. chinense bZIP gene family. We also assessed the collinearity of LchibZIPs between the Arabidopsis and Oryza and showed that the LchibZIP is evolutionarily closer to O. sativa as compared to the A. thaliana. The cis-regulatory element analysis showed that LchibZIPs clustered in one subfamily are involved in several functions. In addition, we gathered novel research suggestions for further exploration of the new roles of LchibZIPs from protein-protein interactions and gene ontology annotations of the LchibZIP proteins. Using the RNA-seq data and qRT-PCR we analyzed the gene expression patterns of LchibZIP genes, and showed that LchibZIP genes regulate cold stress, especially LchibZIP4 and LchibZIP7; and LchibZIP2 and LchibZIP28 which were up-regulated and down-regulated by cold stress, respectively. Studies of genetic engineering and gene function in L. chinense can benefit greatly from the thorough investigation and characterization of the L. chinense bZIP gene family.
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