A Comprehensive Comparative Analysis and Phylogenetic Investigation of the Chloroplast Genome Sequences in Four Astragalus Species.

ABSTRACT: Astragalus L. (Fabaceae), the largest plant genus with significant medicinal value, faces critical endangerment of its wild resources and a scarcity of chloroplast genomic data. We sequenced and assembled the complete chloroplast (cp) genomes of four Astragalus species (A. yunnanensis, A. yunnanensis subsp. incanus, A. polycladus and A. polycladus var. nigrescens) and performed comparative analyses with five previously published chloroplast genomes. The cp genomes of the four Astragalus species ranged in size from 122,868 bp to 125,752 bp, all lacking one inverted repeat (IR) region, thus belonging to the inverted repeat lacking clade (IRLC). Annotation revealed that each genome contained 110 unique genes, including 76 protein-coding

SUBMITTER: Ma HT 

PROVIDER: S-EPMC12731972 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature