Lineage-specific plastid degradation in subtribe Gentianinae (Gentianaceae).

ABSTRACT: The structure and sequence of plastid genomes is highly conserved across most land plants, except for a minority of lineages that show gene loss and genome degradation. Understanding the early stages of plastome degradation may provide crucial insights into the repeatability and predictability of genomic evolutionary trends. We investigated these trends in subtribe Gentianinae of the Gentianaceae, which encompasses ca. 450 species distributed around the world, particularly in alpine and subalpine environments. We sequenced, assembled, and annotated the plastomes of 41 species, representing all six genera in subtribe Gentianinae and all main sections of the species-rich genus Gentiana L. We reconstructed the phylogeny, estimated divergence times, investigated the phylogenetic distrib

SUBMITTER: Fu PC 

PROVIDER: S-EPMC8019047 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature