A new time-calibrated phylogenetic tree for angiosperms based on 353 nuclear genes suggests that over 80% of major modern flowering plant lineages emerged around 150 million years ago in the late Jurassic Period.
Previous evolutionary trees relied on chloroplast genomes, but advancements in nuclear genome sequencing have provided more accurate insights into the evolution of flowering plants.
Detailed information about over 1,100 plant species' nuclear genomes allowed scientists to design tools for sequencing nuclear genes from a wide range of flowering plants.
Collaboration involving hundreds of scientists used gene sequences from over 9,500 species, including dried specimens, to map significant branching points in flowering plant evolution.
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