Comparative and phylogenetic analysis of the complete chloroplast genome sequences of Melanoseris cyanea group.

ABSTRACT: Melanoseris, a diverse genus in the Lactucinae subtribe, has 21 species in China, with 13 being endemic. The high diversity of this genus presents taxonomic challenges, particularly in the M. cyanea group, where overlapping distributions and transitional morphological traits complicate classification. This study aims to analyze the chloroplast genomes of Melanoseris, with a focus on the M. cyanea group, to explore structural differences and phylogenetic relationships among these closely related species. We analyzed the chloroplast genomes of 16 Melanoseris samples, including 12 new genomes from the M. cyanea group. The genome sizes ranged from 152,255 to 152,558 bp and exhibited a typical quadripartite structure, with an average GC content of 37.7%. Each genome encodes 132 genes, including

SUBMITTER: Zhong Q 

PROVIDER: S-EPMC11950356 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature