{"ok":true,"nota":{"id":"cf216eb6a9d1ddd1","slug":"los-pulpos-y-las-sepias-usarian-genes-viejos-de-otra-manera-para-hacer-cf216e","titulo":"Los pulpos y las sepias usarían genes viejos de otra manera para hacer sus ventosas","resumen":"Investigadores de la Universidad de Tokio compararon la actividad genética durante el desarrollo embrionario de sepias, pulpos y caracoles. Vieron que los brazos y las ventosas se forman con genes distintos.","fuente":"phys","fuenteNombre":"Phys.org","color":"#2b5c8a","autor":"","url":"https://phys.org/news/2026-10-octopus-cuttlefish-suckers-evolved-repurposing.html","imagen":"https://scx1.b-cdn.net/csz/news/tmb/2026/why-are-cephalopods-su-1.jpg","tema":"ciencia","subtemas":["evolucion","genetica","cefalopodos","desarrollo embrionario","biologia marina"],"entidades":["Universidad de Tokio","pulpo","sepia","caracol"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-20T13:30:01.000Z","indexTs":"2026-10-20T13:37:10.427Z","hash":"fb465267b8045484861d942f940725e3863d783f742d98511430401bda312935","tsa":{"time":"Oct 20 13:38:52 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"motor","registro":"hallazgo","porQueImporta":"Las ventosas que permiten a un pulpo agarrar y sentir casi cualquier cosa no aparecieron de la nada: salieron de herramientas genéticas que ya existían en sus antepasados moluscos. Para el lector, es una muestra de que la evolución suele reciclar lo que tiene a mano en vez de inventar desde cero. Un animal tan distinto de nosotros también puede enseñarnos cómo se armó la complejidad en la naturaleza. El estudio solo observó la actividad de los genes en embriones, así que todavía falta confirmar qué pasa exactamente en cada paso.","quienFirma":"Universidad de Tokio","confianza":"revisado","consulta":{"pregunta":"¿Te sorprende que la evolución reutilice genes viejos?"}},"sello":{"hash":"fb465267b8045484861d942f940725e3863d783f742d98511430401bda312935","sello":"8a8a524e40d070e5b1eaee3552f43850a51214b513beaf2ba9e57798567b0129","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6569083,"aleatorio":"82a57cf9ae24359ba0bc662661e980982475c4a73e72dbc5256b184583579d62","tiempo":"2026-10-20T13:38:30.000Z"},"nist":{"cadena":2,"pulso":1991747,"salida":"A0FC87FED4E7371469DF99E5554D5B1AC134FFDDAA49A20128420034073EE950430E0692CA1A534590BD851053F85096102A2F9683630EE0E3C6A1EF00121DC4","tiempo":"2026-10-20T13:38:00.000Z"},"noAntes":"2026-10-20T13:38:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 20 13:38:52 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Octopus and cuttlefish suckers may have evolved by repurposing ancient developmental genes","descripcion":"Cephalopods, like the octopus, have specialized arms and suckers, but how these structures evolved from the simple bodies of their mollusk ancestors remains a mystery. Researchers from the University of Tokyo compared gene activity during embryonic development of cuttlefish, octopus and snail body parts. They found that several genes associated with appendage patterning showed expression along developing cephalopod arms, but no comparable patterns in developing suckers. Developing suckers instead expressed Ets1, a gene associated with early embryonic development in mollusks. The findings suggest cephalopods evolved suckers by reusing existing genes in new ways.","pubDate":"Tue, 20 Oct 2026 09:30:01 EDT","url":"https://phys.org/news/2026-10-octopus-cuttlefish-suckers-evolved-repurposing.html"},"indexado":"2026-10-20T13:37:10.427Z"}}