Figure 2D. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S0925-4773(99)00318-4] Mech Dev 91: 445-8, Caubit X; Core N; Boned A; Kerridge S; Djabali M; Fasano L, Vertebrate orthologues of the Drosophila region-specific patterning gene teashirt. Copyright 2000.