Scientists think they have the answer to a puzzle that baffled even Charles Darwin: How flowers evolved and spread to become the dominant plants on Earth.
Flowering plants, or angiosperms, make up about 90% of all living plant species, including most food crops.
In the distant past, they outpaced plants such as conifers and ferns, which predate them, but how they did this has has been a mystery.
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New research suggests it is down to genome size – and small is better.“It really comes down to a question of cell size and how you can build a small cell and still retain all the attributes that are necessary for life,” says Kevin Simonin from San Francisco State University in California, US.
