Embryological evidence for developmental lability during early angiosperm evolution

William E. Friedman ()
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William E. Friedman: University of Colorado

Nature, 2006, vol. 441, issue 7091, 337-340

Abstract: The roots of flowering plants Charles Darwin called the origin of the flowering plants (or angiosperms) an ‘abominable mystery’. The enigma is still far from complete resolution, but some headway is made with the discovery of a new type of embryo sac (a female reproductive structure) in Amborella trichopoda, a small evergreen shrub now found only on the island of New Caledonia. Amborella is the sole living representative of the most ancient angiosperm lineage, and a true ‘living fossil’. Its embryo sac sheds light on a period of experimentation in the early evolution of the flowering plants, and may represent a key intermediate condition between gymnosperms and angiosperms.

Date: 2006
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DOI: 10.1038/nature04690

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