The Marchantia polymorpha pangenome reveals ancient mechanisms of plant adaptation to the environment.

ABSTRACT: Plant adaptation to terrestrial life started 450 million years ago and has played a major role in the evolution of life on Earth. The genetic mechanisms allowing this adaptation to a diversity of terrestrial constraints have been mostly studied by focusing on flowering plants. Here, we gathered a collection of 133 accessions of the model bryophyte Marchantia polymorpha and studied its intraspecific diversity using selection signature analyses, a genome-environment association study and a pangenome. We identified adaptive features, such as peroxidases or nucleotide-binding and leucine-rich repeats (NLRs), also observed in flowering plants, likely inherited from the first land plants. The M. polymorpha pangenome also harbors lineage-specific accessory genes absent from seed plants. We conclu

SUBMITTER: Beaulieu C 

PROVIDER: S-EPMC11906373 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature