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How Hydras get their heads

William Wells

Author Affiliations

Genome Biology 2000, 1:spotlight-20000921-04  doi:10.1186/gb-spotlight-20000921-04

Published: 21 September 2000

The expression of Wnt signaling proteins in the head organizer of Hydra, a freshwater polyp, suggests that Wnt was central in the evolution of axial differentiation.