首页|Identification and characterization of the bZIP transcription factor family in yellowhorn

Identification and characterization of the bZIP transcription factor family in yellowhorn

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The basic leucine zipper (bZIP) transcription factor family is one of the largest and most diverse fami-lies in plants,regulating plant growth and development and playing an essential role in response to abiotic and biotic stresses.However,little is known about the biological func-tions of bZIP proteins in yellowhorn (Xanthoceras sorbi-folium).Recently,64 XsbZIP genes were identified in the yellowhorn genome and found to be disproportionately dis-tributed in linkage groups.The XsbZIP proteins clustered into 11 groups based on their phylogenetic relationships with AtbZIP,ZmbZIP and GmbZIP proteins.Five intron patterns in the basic and hinge regions and additional conserved motifs were defined,both supporting the group classifica-tion and possibly contributing to their functional diversity.Compared to tandem duplication,the segment duplication greatly contributed to the expansion of yellowhorn bZIP genes.In addition,most XsbZIP genes harbor several stress responsive cis-elements in their promoter regions.Moreover,the RNA-seq and qRT-PCR data indicated XsbZIP genes were extensively involved in response to various stresses,including salt (NaCl),cold and abscisic acid,with possibly different molecular mechanisms.These results provide a new understanding of the biological functions of bZIP transcrip-tion factors in yellowhorn.

Yellowhorn (Xanthoceras sorbifolium)bZIP transcription factorAbiotic stressGene expression pattern

Qiaoying Chang、Xin Lu、Zhi Liu、Zhimin Zheng、Song Yu

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State Key Laboratory of Tree Genetics and Breeding,School of Forestry,Northeast Forestry University,Harbin 150040,People's Republic of China

The College of Life Science,Northeast Forestry University,Harbin 150040,People's Republic of China

Shiny-Leaved Yellowhorn Engineering and Technology Research Center of National Forestry and Grassland Administration,Chifeng 024005,People's Republic of China

This work was supported by the fundamental research funds for the Central Universitiesinnovation project of state key laboratory of tree genetics and breeding (Northeast Forestry University)

2572018BS012019A02

2021

林业研究(英文版)
东北林业大学,中国生态学学会

林业研究(英文版)

CSTPCDCSCDSCI
影响因子：0.365
ISSN：1007-662X
年,卷(期)：2021.32(1)
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