Chloroplast genomic insights into adaptive evolution and rapid radiation in the genus Passiflora (Passifloraceae).

ABSTRACT: Chloroplasts are essential organelles in plants and eukaryotic algae, responsible for photosynthesis, fatty acid synthesis, amino acid production, and stress responses. The genus Passiflora, known for its species diversity and dynamic chloroplast (cp) genome evolution, serves as an excellent model for studying structural variations. This study investigates evolutionary relationships within Passiflora by sequencing 11 new chloroplast genomes, assessing selective pressures on cp genes, and comparing plastid and nuclear phylogenies. Passiflora cp genomes showed significant variations in size, gene content, and structure, ranging from 132,736 to 163,292 base pairs, especially in Decaloba. Structural rearrangements and species-specific repeat patterns were identified. Selective pressure tests r

SUBMITTER: Cauz-Santos LA 

PROVIDER: S-EPMC11823247 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature