Plant gene duplicates after polyploidy cycles
Across plant genomes, WGD and other duplication modes leave distinct, lineage-biased duplicate landscapes.
Source
Gene duplication and evolution in recurring polyploidization-diploidization cycles in plants
What they did
Classified duplicates in 141 plant genomes into WGD, tandem, proximal, transposed, and dispersed classes.
What they found
Recent WGDs retain more WGD pairs; Brassicas show frequent WGT; modes vary by clade.
The limits
What it doesn't show
Classification depends on algorithms/parameters; not every pair’s function is tested.
Key terms
- WGD
- Whole-genome duplication.
- WGT
- Whole-genome triplication.
- Tandem duplicate
- Adjacent gene copies.
- Diploidization
- Return toward diploid-like state.
- Ohnolog
- WGD-derived paralog.
- DupGen_finder
- Duplicate classification tool.
Flashcards
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Topic:
Common questions
Genomes?
141 plants.
Modes?
Five duplicate classes.
Focus?
Polyploidy cycles.
Clade note?
Brassicaceae WGTs.
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