Acta Agriculturae Zhejiangensis ›› 2025, Vol. 37 ›› Issue (8): 1658-1665.DOI: 10.3969/j.issn.1004-1524.20240956

• Crop Science • Previous Articles     Next Articles

Cloning and function analysis of JcMBY27 gene from Jatropha curcas

WANG Xiaohui(), JIA Sainan, FENG Jiayu, YIN Xinyue, LIU Zixuan, LIU Wenjie, ZHAO Shuaiying, WANG Shujing, TANG Yuehui()   

  1. College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, China
  • Received:2024-11-11 Online:2025-08-25 Published:2025-09-03
  • Contact: TANG Yuehui

Abstract:

MYB transcription factors play an important regulatory role in plant growth, development and secondary metabolite synthesis. To investigate the function of the MYB transcription factor gene JcMYB27 in Jatropha curcas, this study used J. curcas as material, and cloned the JcMYB27 gene by reverse transcription polymerase chain reaction (RT-PCR), analyzed its expression patterns using quantitative real-time PCR (qRT-PCR), determined its subcellular localization through transient expression in Arabidopsis thaliana protoplasts, and generated JcMYB27-overexpression Arabidopsis thaliana plants by the floral dip method. Phenotypic analyses were conducted under normal growth conditions, including root hair number and leaf anthocyanin content under 5% sucrose induction. The results showed that the length of JcMYB27 open reading frame was 243 bp, encoding 80 amino acids. Expression pattern analysis showed that JcMYB27 was expressed most highly in J. curcas roots. Subcellular localization analysis demonstrated that JcMYB27 was localized in the nucleus and cytoplasm. Under normal growth conditions, overexpression of the JcMYB27 gene in A. thaliana increased root hair numbers while reducing the anthocyanin content in leaves. Under sucrose induction, JcMYB27-overexpression A. thaliana exhibited significantly lower leaf anthocyanin content compared with wild-type plants. Additionally, the expressions of anthocyanin synthesis-related genes DFR, LDOX and UF3GT in JcMYB27-overexpression A. thaliana were significantly lower than those in wild type. In conclusion, JcMYB27 gene plays a regulatory role in root hair development and anthocyanin biosynthesis in J. curcas.

Key words: Jatropha curcas, JcMYB27 gene, MYB transcription factor, Arabidopsis thaliana, root hair, anthocyanin

CLC Number: