Evidence against tetrapod-wide digit identities and for a limited frame shift in bird wings

The homology of digits across amniotes is debated. Here, the authors compare the developmental transcriptomes of digits across five divergent amniotes and show high evolutionary dynamism in expression profiles, with conservation of a distinct developmental identity only in the anterior-most digit.

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Detalles Bibliográficos
Autores principales: Thomas A. Stewart, Cong Liang, Justin L. Cotney, James P. Noonan, Thomas J. Sanger, Günter P. Wagner
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2019
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Acceso en línea:https://doaj.org/article/d82a9d859df14949be5f8629056f6fdc
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Sumario:The homology of digits across amniotes is debated. Here, the authors compare the developmental transcriptomes of digits across five divergent amniotes and show high evolutionary dynamism in expression profiles, with conservation of a distinct developmental identity only in the anterior-most digit.