Analysis of chloroplast genomes and SSR classification and identification of Agropyron species and closely related species.

ABSTRACT: To thoroughly analyze the characteristics of the chloroplast genome in the genus Agropyron Gaertn and provide a theoretical basis for its evolutionary biology and the molecular marker-assisted taxonomic identification of the broad-spike and narrow spike clades. This study conducted a systematic analysis of the chloroplast genomes from seven Agropyron species and two closely related species (Elymus trachycaulus and Elytrigia elongata). The chloroplast genome of Agropyron Gaertn exhibits a typical quadripartite structure, ranging in size from 135 to 137 kb and containing 131 genes. The rps12 and ycf3 genes show high variability, while the intergenic regions (IR) exhibit high GC content of 43.91% to 44.01%. SSR and scattered repetitive sequences exhibit significant interspecific differences a

SUBMITTER: Pan W 

PROVIDER: S-EPMC12847802 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature