Genome-Wide Identification and Expression Analysis of the PIN Auxin Transporter Gene Family in Zanthoxylum armatum DC

Tao Zhou, Jiajia Chen, Yanhui Huang, Zhengyu Jin, Jianrong Li, Yan Li and Xiaofang Zeng ()
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Tao Zhou: Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, College of Life Sciences, Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
Jiajia Chen: Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, College of Life Sciences, Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
Yanhui Huang: Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, College of Life Sciences, Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
Zhengyu Jin: Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, College of Life Sciences, Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
Jianrong Li: Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, College of Life Sciences, Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
Yan Li: Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, College of Life Sciences, Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
Xiaofang Zeng: Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, College of Life Sciences, Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China

Agriculture, 2022, vol. 12, issue 9, 1-16

Abstract: PIN-formed (PIN) proteins are important auxin carriers that participate in the polar distribution of auxin in plants. In this study, 16 ZaPIN genes were identified from the whole genome of Zanthoxylum armatum DC. The physicochemical properties and structure of PIN proteins were determined, and the gene sequences and promoter regions were analyzed to identify cis -acting elements and conserved motifs. The transcript profiles of ZaPIN genes in different tissues and in response to auxin and gibberellin treatments were also analyzed. A phylogenetic analysis separated the 16 ZaPIN genes into four groups. The ZaPIN genes showed the closest evolutionary relationship to those of Citrus sinensis and the most distant evolutionary relationship to those of Oryza sativa . A cis -element analysis revealed a large number of cis elements in ZaPIN promoter regions related to plant hormones, plant growth and development, and stress stimuli, suggesting that ZaPINs have a wide range of biological activities. Additionally, gene expression profiling revealed that ZaPINs had different expression patterns in nine tissues. Further qRT-PCR analyses revealed that most ZaPINs were upregulated by auxin and gibberellin in young leaves. Our results provide useful information for further structural and functional analyses of the ZaPIN gene family in Z. armatum .

Keywords: Zanthoxylum armatum DC; PIN gene family; bioinformatic analysis; auxin (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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