Analysis of physiological characteristics and gene co-expression networks in <i>Medicago sativa</i> roots under low-temperature stress.

ABSTRACT: Medicago sativa is the most widely cultivated high-protein forage crop globally. However, its cultivation in high-latitude and cold regions of China is significantly hindered by low-temperature stress, particularly impacting the root system, the primary functional tissue crucial for winter survival. The physiological and molecular mechanisms underlying the root system's adaptation and tolerance to low temperatures remain poorly understood. To this end, this study utilized cold-tolerant Medicago sativa "Lomgmu801" and the cold-sensitive Medicago sativa "Sardi" genotypes as experimental materials to investigate root physiological responses during the overwintering period. Physiological indices, including soluble sugars (SS), proline (Pro), glutathione (GSH), jasmonic aci

SUBMITTER: Wang X 

PROVIDER: S-EPMC12415042 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature