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Table 6 Presence (+) and absence (−) of genes related to vitamin B-12 uptake in mammals, gastric teleosts and ballan wrasse

From: Loss of stomach, loss of appetite? Sequencing of the ballan wrasse (Labrus bergylta) genome and intestinal transcriptomic profiling illuminate the evolution of loss of stomach function in fish

   Mammals Gastric teleosts Ballan Wrasse
GIF gastric intrinsic factor +
TCN1 Transcobalamin 1 +
TCN2 Transcobalamin 2 + + +
TCN-like Transcobalamin like + +