Comparative chloroplast genomics of Rutaceae: structural divergence, adaptive evolution, and phylogenomic implications.

ABSTRACT: The study of chloroplast genome evolutionary dynamics provides critical insights into plant adaptive evolution and phylogenetic relationships. This research conducted a systematic comparative analysis of chloroplast genomes across 35 species within the Rutaceae family. All genomes displayed the typical quadripartite structure, with sizes ranging from 155 to 161 kb, GC contents between 38.17% and 38.83%, and gene counts varying from 122 to 144. Structural conservation was high across species, with variations mainly localized at the boundaries of inverted repeat (IR) regions. AT-rich mononucleotide simple sequence repeats (SSRs) were dominant and primarily distributed in non-coding regions. Collinearity analysis revealed high sequence conservation alongside lineage-specific rearrangements. R

SUBMITTER: Chen Y 

PROVIDER: S-EPMC12531857 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature