Transcriptomic and Metabolomic Analysis Reveals Key Genes and Metabolites in Common Vetch (Vicia sativa L.) Response to Drought Stress

Common vetch (Vicia sativa L.) is an important annual leguminous forage crop commonly used for green manure, fodder, and soil improvement. It is widely cultivated as a green manure and forage crop in Yunnan Province during winter and spring. However, the dry conditions and minimal rainfall during these seasons greatly limit common vetch growth. Therefore, screening for drought-tolerant, high-yielding common vetch varieties is a critical objective in breeding programs.