Acta Agriculturae Boreali-Sinica ›› 2026, Vol. 41 ›› Issue (4): 12-23. doi: 10.7668/hbnxb.20196314

Special Issue: Corn Biotechnology

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

Elucidating the Molecular Mechanism of Anthocyanin Accumulation in Different-Colored Fresh Edible Corn Through Metabolomic and Transcriptomic Analyses

JIANG Chao, YAN Linan, SHI Hanbo, YIN Wenxu, LI Hui, LIU Songtao, LU Haibo, ZHAO Haichao, HUANG Zhihong   

  1. Hebei North University, Key Laboratory of Analysis and Inspection of Agricultural Products and Food Safety of Hebei Province,Graduate Student Workstation of Hebei Province, Zhangjiakou 075000, China
  • Received:2025-07-21 Published:2026-08-28

Abstract:

This study aimed to elucidate the compositional differences and molecular regulatory mechanisms of anthocyanins in kernels of fresh-eating maize with different colors by integrating metabolomic and transcriptomic analyses,thereby providing candidate genes and a theoretical basis for molecular breeding of colored fresh-eating maize.White WN2000,yellow HN,colored CN1,and black HTN188 were used as materials.Metabolomics was employed to identify anthocyanin-related metabolites and screen differential metabolites;transcriptome sequencing was conducted to obtain differentially expressed genes(DEGs).Metabolite gene associations were analyzed through GO annotation and KEGG pathway enrichment,and key structural genes and transcriptional regulators were mined within the anthocyanin biosynthetic pathway.The results showed that 49 anthocyanin-related metabolites were identified in total.Major anthocyanins,including cyanidin,peonidin,and pelargonidin,accumulated significantly in HTN188,indicating stronger pigment deposition.Transcriptome analysis identified 12 557 DEGs,among which structural genes such as F3H,DFR,and UFGT,as well as transcription factors including MYB and bHLH,were significantly up-regulated in varieties with high anthocyanin content.Correlation analysis revealed that the expression level of Zm00001d011438 was significantly and positively correlated with total anthocyanin content,suggesting that it may play a key role in kernel anthocyanin accumulation.Overall,the integrated metabolomic and transcriptomic analyses characterized differences in anthocyanin composition and related gene expression among differently colored fresh-eating maize kernels,and identified structural genes,transcription factors,and the candidate Zm00001d011438 associated with the anthocyanin biosynthetic pathway,providing references for subsequent functional validation and genetic improvement.

Key words: Maize, Anthocyanin, Metabolome, Transcriptome, Structural gene

CLC Number: 

Cite this article

JIANG Chao, YAN Linan, SHI Hanbo, YIN Wenxu, LI Hui, LIU Songtao, LU Haibo, ZHAO Haichao, HUANG Zhihong. Elucidating the Molecular Mechanism of Anthocyanin Accumulation in Different-Colored Fresh Edible Corn Through Metabolomic and Transcriptomic Analyses[J]. Acta Agriculturae Boreali-Sinica, 2026, 41(4): 12-23. doi: 10.7668/hbnxb.20196314.

share this article