Comparative analysis of complete chloroplast genomes of <i>Cousinia</i> (Asteraceae) species.

ABSTRACT: The study focused on analyzing the chloroplast genome structure and investigating the phylogenetic relationships among six species of the Cousinia genus. Within the Asteraceae family, the complete chloroplast genome sequences of six Cousinia species, ranging from 152,553 to 152,619 bp. The chloroplast genomes exhibit a characteristic quadripartite structure. The gene order is largely conserved across the genus, with an exception in the small single copy region, where a reverse orientation is observed in comparison to Cousinia thomsonii. A total of 131 genes were annotated, including 87 protein-coding genes, 36 tRNA genes, and 8 rRNA genes, with 18 genes showing duplication. Notably, 16 genes contain introns, with ycf3 and clpP carrying two introns each. N

SUBMITTER: Karimov B 

PROVIDER: S-EPMC12069278 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature