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Expression pattern of ks1 in H. vulgaris. (A) ks1 is expressed as a gradient in apical tissue (head and TFZ). Substrate reaction for 40 min. (B) Strong ks1 expression is confined to base of tentacles (substrate reaction for 20 min). (C) antisense control. (D–G) ks1 expression in various stages of bud formation. A digoxigenin-labeled ks1 RNA probe was used as probe for in situ hybridization.
