{"ok":true,"nota":{"id":"8f4010bbeb959b51","slug":"el-adn-de-18-razas-de-caballos-locales-de-francia-muestra-como-la-cria-8f4010","titulo":"El ADN de 18 razas de caballos locales de Francia muestra cómo la cría redujo su diversidad genética","resumen":"Investigadores analizaron marcadores genéticos de las 18 razas de caballos locales de Francia, todas con censos pequeños, para reconstruir su historia. Buscaron cómo se manejó la diversidad genética desde la creación de las razas hasta hoy.","fuente":"biorxiv","fuenteNombre":"bioRxiv · preprints","color":"#be2628","autor":"Shakya, Y., Bonnin, C., Danvy, S., Dumont, B. S. P., Rousseaux, E., Sabbagh, M., Verrier, E., Servin, B., RESTOUX, G.","url":"https://www.biorxiv.org/content/10.64898/2026.10.21.760631v1?rss=1","imagen":"/hoy/portada/8f4010bbeb959b51","tema":"ciencia","subtemas":["genetica","razas-de-caballos","diversidad-genetica","conservacion","endogamia"],"entidades":["Francia","bioRxiv"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-26T00:00:00.000Z","indexTs":"2026-10-27T00:12:40.142Z","hash":"5ee2bf9792970afa47260b8dbd83fcf512cfc4c108d43e1f5f28b0d65b7f97b6","tsa":{"time":"Oct 27 00:13:42 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"Estas razas están en riesgo porque tienen pocos ejemplares, y eso aumenta la endogamia y la pérdida de variedad genética. El estudio muestra con datos del ADN lo que las genealogías escritas no siempre registran bien, como errores o huecos en los papeles. Sirve para entender que conservar una raza no es solo juntar animales, sino cuidar quién se cruza con quién.","quienFirma":"Universidad (preprint de bioRxiv; institución principal no visible en el texto recibido)","confianza":"preprint","consulta":null},"sello":{"hash":"5ee2bf9792970afa47260b8dbd83fcf512cfc4c108d43e1f5f28b0d65b7f97b6","sello":"874e8f6fda5c2774c8234249ad839dd2a21a07d434ff8aa4ab9b76cc47e3c59a","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6587632,"aleatorio":"e5f4501cec646e43fc02e0fe1fe4a007971ca7f76b2ee59bcfa3c5f64bf15567","tiempo":"2026-10-27T00:13:00.000Z"},"nist":{"cadena":2,"pulso":2001009,"salida":"D40E14007D6713315067C4542F3D7D0FF922C8FB815DB05FEACE37847166032AAD7591924E5D2623E17D17CD6D56FA07A2A5696B5751C1B97915B1C932BE8E75","tiempo":"2026-10-27T00:12:00.000Z"},"noAntes":"2026-10-27T00:13:00.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 27 00:13:42 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Historical and Contemporary Management of Genetic Diversity in French Local Horse Breeds: Insights from Genomic Data","descripcion":"The phenotypic and genetic diversity of horses worldwide today likely resulted from two main events: (i) domestication and, afterwards, (ii) breed creation. While many studies discuss the origin and domestication of horses, very few focus on the second important event, which has largely shaped the genetic architecture of horses at present. This study exhaustively examined all 18 local horse breeds from France, all of which are endangered by small census sizes, making them prone to suffer from genetic drift, loss of diversity, and inbreeding depression. While pedigrees are available, they are often incomplete or error-prone. Thus, we used molecular markers to reconstruct the history of French","pubDate":"2026-10-26","url":"https://www.biorxiv.org/content/10.64898/2026.10.21.760631v1?rss=1"},"indexado":"2026-10-27T00:12:40.142Z"}}