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Fecha
2015-07-01
Derechos de acceso
info:eu-repo/semantics/openAccess
Título de la revista
ISSN de la revista
Título del volumen
Editorial
Universidade de São Paulo
Citas
Resumen
El desarrollo embriológico es un fenómeno que ha inspirado la especulación filosófica desde temprano en la historia del pensamiento. Desde los tiempos de Aristóteles dos modelos conceptuales antitéticos se han utilizado tradicionalmente para comprender la embriogénesis: o el embrión posee ya una forma o estructura, o ésta se forma de nuevo en cada generación. Nuestro objetivo en este artículo es mostrar que el contraste entre la posición preformacionista y epigenética persiste a pesar de los formidables avances teóricos y experimentales de la biología del desarrollo contemporánea. El preformacionismo y la epigénesis han perfeccionado constantemente sus posiciones en el curso de la historia con el fin de responder a los retos conceptuales de la época. Este continuo proceso de transformación ha dado lugar a una convergencia parcial entre las dos posiciones. Sin embargo, vamos a argumentar que, a pesar de los esfuerzos por conciliar ambas posturas, esta antinomia, que se erige como una de las más fundamentales de la biología, no será fácil de superar.
The process of development of the embryo has inspired philosophical speculation since the advent of Western thought. Since the time of Aristotle two antithetical conceptual models have traditionally been used to understand embryogenesis: either form or structure is preformed in the embryo or it is newly formed with each generation. Our aim in this article is to show that the contrast between the pre-formationist and epigenetic positions persists despite the formidable theoretical and experimental advances of contemporary developmental biology. Pre-formationism and epigenesis have constantly refined their positions in the course of history in order to answer the conceptual challenges of each epoch. This process of continuous transformation has resulted in a partial convergence of the two positions. However, we shall argue that, despite the partial successes of this process of continuous convergence, one of the most fundamental antinomies in biology persists.
The process of development of the embryo has inspired philosophical speculation since the advent of Western thought. Since the time of Aristotle two antithetical conceptual models have traditionally been used to understand embryogenesis: either form or structure is preformed in the embryo or it is newly formed with each generation. Our aim in this article is to show that the contrast between the pre-formationist and epigenetic positions persists despite the formidable theoretical and experimental advances of contemporary developmental biology. Pre-formationism and epigenesis have constantly refined their positions in the course of history in order to answer the conceptual challenges of each epoch. This process of continuous transformation has resulted in a partial convergence of the two positions. However, we shall argue that, despite the partial successes of this process of continuous convergence, one of the most fundamental antinomies in biology persists.
Descripción
La versión registrada de este artículo, publicado por primera vez en Scientiae Studia, está disponible en línea en el sitio web del editor: Universidade de São Paulo, https://doi.org/10.1590/S1678-31662015000300005
The registered version of this article, first published in Scientiae Studia, is available online at the publisher's website: Universidade de São Paulo, https://doi.org/10.1590/S1678-31662015000300005
The registered version of this article, first published in Scientiae Studia, is available online at the publisher's website: Universidade de São Paulo, https://doi.org/10.1590/S1678-31662015000300005
Categorías UNESCO
Palabras clave
Embrión, Preformación, Epigénesis, Determinante, Campo morfogenético, Morfogen, Mosaicismo, Regulación, Embryo, Pre-formationism, Epigenesis, Determinant, Morphogenetic field, Morphogen, Regulation
Citación
Vecchi, D., Hernández, I. 2015. Epigénesis y preformacionismo: radiografía de una antinomia inconclusa. Scientiae Studia 13(3):577-597.
Centro
Facultad de Filosofía
Departamento
Lógica, Historia y Filosofía de la Ciencia