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Nature 446, 279-283 (15 March 2007) | doi:10.1038/nature05706

Hybrid speciation

James Mallet1

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Botanists have long believed that hybrid speciation is important, especially after chromosomal doubling (allopolyploidy). Until recently, hybridization was not thought to play a very constructive part in animal evolution. Now, new genetic evidence suggests that hybrid speciation, even without polyploidy, is more common in plants and also animals than we thought.