Comparative Transcriptome Analysis of Walnuts (<i>Juglans regia</i> L.) in Response to Freezing Stress.

ABSTRACT: Walnuts (Juglans regia L.) are an economically important woody crop, but spring frost poses a serious threat to their growth and productivity. However, the molecular mechanisms underlying walnut responses to freezing stress remain largely unknown. In this study, transcriptome analyses were performed on cold-tolerant and cold-sensitive walnut varieties subjected to freezing stress. A total of 9611 differentially expressed genes (DEGs) responsive to freezing stress were obtained, of which 2853 were common up-regulated and 2880 were common down-regulated in both varieties. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis revealed 15 significantly enriched pathways in both varieties, including flavonoid biosynthesis. A simplified walnut flavonoid biosynthesis pathway w

SUBMITTER: Chen L 

PROVIDER: S-EPMC12526320 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature