Original file (1,240 × 1,647 pixels, file size: 5.76 MB, MIME type: application/pdf, 20 pages)
English: Green plants (Viridiplantae) include around 450,000–500,000 species1,2 of great diversity and have important roles in terrestrial and aquatic ecosystems. Here, as part of the One Thousand Plant Transcriptomes Initiative, we sequenced the vegetative transcriptomes of 1,124 species that span the diversity of plants in a broad sense (Archaeplastida), including green plants (Viridiplantae), glaucophytes (Glaucophyta) and red algae (Rhodophyta). Our analysis provides a robust phylogenomic framework for examining the evolution of green plants. Most inferred species relationships are well supported across multiple species tree and supermatrix analyses, but discordance among plastid and nuclear gene trees at a few important nodes highlights the complexity of plant genome evolution, including polyploidy, periods of rapid speciation, and extinction. Incomplete sorting of ancestral variation, polyploidization and massive expansions of gene families punctuate the evolutionary history of green plants. Notably, we find that large expansions of gene families preceded the origins of green plants, land plants and vascular plants, whereas whole-genome duplications are inferred to have occurred repeatedly throughout the evolution of flowering plants and ferns. The increasing availability of high-quality plant genome sequences and advances in functional genomics are enabling research on genome evolution across the green tree of life.
|Author||One Thousand Plant Transcriptomes Initiative|
|This file is licensed under the Creative Commons Attribution 4.0 International license.|
CC BY 4.0 Creative Commons Attribution 4.0 true
Click on a date/time to view the file as it appeared at that time.
|current||13:19, 3 November 2019||1,240 × 1,647, 20 pages (5.76 MB)||Pamputt||User created page with UploadWizard|
File usage on Commons
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
|Image title||Nature, doi:10.1038/s41586-019-1693-2|
|Author||James H. Leebens-Mack|
|Short title||One thousand plant transcriptomes and the phylogenomics of green plants|
|Version of PDF format||1.4|