Development of the Goose Tongue Filiform Papillae: Could it be Tooth-Like Sense Organs?/Desarrollo de las Papilas Filiformes de la Lengua de Ganso: ¿Podrían ser Órganos Sensoriales Parecidos a los Dientes?

The geese's tongue filiform papillae are particularly long, and exhibit the same morphology of a tooth, evoking the lingual teeth of several fishes. In adult animals, they contain numerous mechanical Herbst's corpuscles but no taste buds. In the embryo, they appear since stage 38 and acqui...

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Bibliographic Details
Published in:International journal of morphology 2023-11, Vol.41 (6), p.1631
Main Authors: Louryan, Stephane, Choa-Duterre, Myriam, Destoop, Gabriel, Lejong, Marie, Matte-Allain, Caroline, Vanmuylder, Nathalie
Format: Article
Language:Spanish
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Summary:The geese's tongue filiform papillae are particularly long, and exhibit the same morphology of a tooth, evoking the lingual teeth of several fishes. In adult animals, they contain numerous mechanical Herbst's corpuscles but no taste buds. In the embryo, they appear since stage 38 and acquire their definitive shape between stages 38 and 42. They express several proteins associated with mammalian tooth development (BMP4, [beta]-catenin, SHH, PITX2, PAX9), also known to be linked to parrot's pseudoteeth and goose's denticulations development. Neurofilaments are early present in the papillae primordia, and appear particularly numerous in adult papillae. Our results suggest that these papillae constitute a mechanical organ with a [much less than] tooth shape [much greater than] derived from ancestral odontodes, whose development is controlled by numerous genes involved in classical odontogenesis. KEY WORDS: Tongue papillae; Goose; Development; Genes; Embryo.
ISSN:0717-9367