Lmst

#MBLScience

Ever wondered how a species can create new body parts? Walking fish hold the answer! 🐟

Great first #preLights post from Roberto Rodríguez-Morales exploring the collaborative work of Amy Herbert and team #MCB_Harvard #StanfordMed #HHMINews #MBLScience.

Check it out! #preLight 👉 https://prelights.biologists.com/highlights/the-genetic-basis-of-novel-trait-gain-in-walking-fish/

#preprint #development #biology #evolution #genetics

Sea robin leg development. Novel leg-like structures in sea robins (A, black arrowheads) develop from the bottom three ray fins (B, white arrowheads) of the pectoral fin. Scale bar: 1 mm. (B) Schematic representing tissues collected for RNA-seq before and after leg separation. (D) PCA showing clustering of gene expression profiles of legs with pelvic fins before and after separation. (E) Volcano plot showing upregulated gene expression, including tbx3a, in the future legs compared with the top portion of the pectoral fin before leg separation.

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