Abstract
Medicago ruthenica is a well-known high-quality forage due to its good palatability and strong tolerance to drought, cold and saline-alkali stress. Here, the complete chloroplast genome sequence of M. ruthenica was reported. The chloroplast genome is 126,939 bp in length. This chloroplast genome has no inverted repeat (IR) regions, which is very common in the family Fabaceae. The M. ruthenica chloroplast genome encodes 107 genes, including 73 protein-coding genes, 30 tRNA genes, and 4 rRNA genes. Phylogenetic analysis result strongly suggested that M. ruthenica is a distinct lineage in Medicago, being sister to highly supported clade composed of three species (M. hybrida, M. papillosa and M. sativa).
Highlights
Medicago ruthenica is a well-known high-quality forage due to its good palatability and strong tolerance to drought, cold and saline-alkali stress
The complete chloroplast genome of M. ruthenica was extracted from the dried leaves with a modified CTAB method
The voucher specimen was kept in Herbarium of the Northwest Institute of Plateau Biology, Northwest Institute of Plateau Biology, Chinese Academy of Sciences (HNWP, XIE2019015)
Summary
Medicago ruthenica is a well-known high-quality forage due to its good palatability and strong tolerance to drought, cold and saline-alkali stress. KEYWORDS Medicago ruthenica; chloroplast genome; phylogenetic analysis; Fabaceae Medicago ruthenica is a perennial plant, which is one of the core species of Section Pialcarpae (Small and Jomphe 1989). It is widely distributed in Mongolia, Korea, Russia (Siberia, Far East) and high latitude and cold regions in northern China (Hao and Shi 2006).
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