Acta Agriculturae Boreali-Sinica ›› 2023, Vol. 38 ›› Issue (5): 69-76. doi: 10.7668/hbnxb.20194037

Special Issue: Sweet pepper Biotechnology Vegetables

• Crop Genetics & Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Cloning and Expression Analysis of ARP Gene in Capsicum annuum L.var.fasciculatum

HUANG Miao, LUO Youyou, NI Rui, ZHAO Jin   

  1. College of Agriculture,Guizhou University,Guiyang 550025,China
  • Received:2023-04-24 Published:2023-10-28

Abstract:

In order to explore the response of ARP to low temperature stress in ornamental pepper,and provide a theoretical basis for subsequent research on gene function in ornamental pepper under low temperature stress.This study cloned homologous ARP gene from ornamental pepper using RT-PCR technology,named CfARP,and analyzed their expression in different tissues of ornamental peppers and under low temperature treatment;Using bioinformatics analysis to study gene protein coding,physicochemical properties,and genetic relationships,and using qRT-PCR technology to detect the expression level of CfARP in different tissues of ornamental pepper and under low temperature treatment.The results showed that the CDS sequence of the CfARP gene was 342 bp,with 100% homology with Zunla 1.It could encode 113 amino acids and contained a conserved Auxin-repressed domain;protein physicochemical analysis revealed that the molecular weight of CfARP protein was 12.156 ku,its isoelectric point was 10.22,and the average coefficient of hydrophilicity was -0.913.It was preliminarily predicted that CfARP was a hydrophilic protein;compared with other species' ARP amino acid sequences,it was found that CfARP was highly conserved in Solanaceae plants.The Real-time Fluorescence Quantitative PCR results showed that the expression level of CfARP gene was the highest in the stems of ornamental pepper,followed by roots,and relatively less in leaves and flowers;the expression level of CfARP gene continuously increased with the increase of low-temperature treatment duration.It was preliminarily speculated that CfARP had a certain role in the response of ornamental pepper to low temperature stress.

Key words: Capsicum annuum L.var.fasciculatum, CfARP, Gene cloning, Bioinformatics analysis, qRT-PCR, Cold stress

Cite this article

HUANG Miao, LUO Youyou, NI Rui, ZHAO Jin. Cloning and Expression Analysis of ARP Gene in Capsicum annuum L.var.fasciculatum[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(5): 69-76. doi: 10.7668/hbnxb.20194037.

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