{"id":37843,"date":"1998-09-01T00:00:00","date_gmt":"1998-09-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudi-comparatiu-de-gens-reguladors-del-desenvolupament-caracteritzacio-de-ge-ns-ambhomeobox-del-complexe-hox-i-de-la-familia-otx-a-planaries\/"},"modified":"1998-09-01T00:00:00","modified_gmt":"1998-09-01T00:00:00","slug":"estudi-comparatiu-de-gens-reguladors-del-desenvolupament-caracteritzacio-de-ge-ns-ambhomeobox-del-complexe-hox-i-de-la-familia-otx-a-planaries","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/estudi-comparatiu-de-gens-reguladors-del-desenvolupament-caracteritzacio-de-ge-ns-ambhomeobox-del-complexe-hox-i-de-la-familia-otx-a-planaries\/","title":{"rendered":"Estudi comparatiu de gens reguladors del desenvolupament: caracteritzacio de ge ns ambhomeobox del complexe hox i de la familia otx a planaries."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Ramon Bayascas Ram\u00edrez <\/strong><\/h2>\n<p>Las planarias de agua dulce son organimos simples dotados de un eje anteroposterior: una clara cefalizaci\u00f3n. Ya que los genes con homeobox de tipo hox estan implicados en la especificaci\u00f3n de la identidad posicional en el eje anteroposterior, y los genes otx en la diversificaci\u00f3n de estructuras cef\u00e1licas, su estudio en planarias debe permitir conocer el grado de conservaci\u00f3n de estas funciones g\u00e9nicas. Han sido aislados 7 genes de tipo hox y un gen otxen dugesia trigina. Dos de los genes hox presentan una expresi\u00f3n acorde con una funci\u00f3n hox conservada en planarias. Por contra, el resto de genes aislados podrian haber divergido en funci\u00f3n a tenor de los patrones de expresi\u00f3n que presentan. Dtotx es un gen cef\u00e1tico implicado en la especificaci\u00f3n de estructuras anteriores, funci\u00f3n que se habria conservado a lo largo de toda la escala evolutiva.  la presencia de una dotaci\u00f3n g\u00e9nica tan compleja en un organismo considerado como el m\u00e1s simple dentro de los tribl\u00e1sticos hace pesar que estos organismos podr\u00edan haber sido en realidad simplicados. Dada la presencia de un c\u00f3digo hox activado de forma din\u00e1mica en el adulto se propone como via de simplificaci\u00f3n la prog\u00e9nesis, posiblemente a partir de un ancestro compratido con an\u00e9lidos segun datos moleculares.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudi comparatiu de gens reguladors del desenvolupament: caracteritzacio de ge ns ambhomeobox del complexe hox i de la familia otx a planaries.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudi comparatiu de gens reguladors del desenvolupament: caracteritzacio de ge ns ambhomeobox del complexe hox i de la familia otx a planaries. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Ramon Bayascas Ram\u00edrez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 09\/01\/1998<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Emilio Salo Boix<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jaume Bagu\u00f1\u00ed\u00a0 monjo <\/li>\n<li>gines Morata perez (vocal)<\/li>\n<li>albert Boronat margosa (vocal)<\/li>\n<li>jordi Casanova roca (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Ramon Bayascas Ram\u00edrez Las planarias de agua dulce son organimos simples dotados de un eje anteroposterior: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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