{"id":14954,"date":"2018-03-09T09:01:54","date_gmt":"2018-03-09T09:01:54","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/expresion-genica-durante-el-desarrollo-gonadal-de-talpa-occidentalis\/"},"modified":"2018-03-09T09:01:54","modified_gmt":"2018-03-09T09:01:54","slug":"expresion-genica-durante-el-desarrollo-gonadal-de-talpa-occidentalis","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/expresion-genica-durante-el-desarrollo-gonadal-de-talpa-occidentalis\/","title":{"rendered":"Expresion genica durante el desarrollo gonadal de talpa occidentalis."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Francisco Javier Barrionuevo Jimenez <\/strong><\/h2>\n<p>Las hembras del topo iberico, talpa occidentalis, presentan un caso de reversion sexual, ya que en lugar de ovarios normales presentan ovotestes bilaterales, con una region con caracteristcas de tejido ovarico normal y otra region de tama\u00f1o variable, con caracteristicas de tejido testicular disgenesico. Los testiculos masculinos son invariablemente normales.  dada las caracteristicas tan excepcionales que presentan estas hembras, en el presente trabajo se ha realizado el estudio de la organogenesis gonadal en esta especie, asi como la expresion de genes implicados en la diferenciacion determinacion sexual. Para ello hemos tenido que desarrollar tecnicas para la obtencion de embriones, crias y fetos de topo, asi como para el mantenimiento de estos animales en alojamientos artificiales.  asi, hemos comprobado que el desarrollo testicular de los machos del topo talpa occidentalis se realiza seg\u00fan el patron comun en otras especies de mamiferos, y los genes sry, daxi y sox9 se expresan de forma ininterrumpida durante todo el desarrollo prenatal de los testiculos xy de topo, un perfil de expresion bastante distinto del de especies tales como rata y raton. la expresion continuada de sry explica que la de de daxi no tenga ninguna consecuencia negativa en el desarrollo testicular.  el topo es el unico mamifero en el que el primer signo de diferenciacion sexual aparece en las hembras, en lugar de en los machos, ya que en un estudio precoz se observa un septo de tejido que defiine una region cortical y otra medular, cosa que no ocurre en el macho del mismo estadio. El desarrollo del tejido ovarico de los ovotestes de las hembras de topo tiene un desarrollo normal al compararlo con otras especies de mamiferos. El tejido testicular de los ovotestes del topo es ontogeneticamente homologo del de los testiculos de los machos, y se desarrolla siguiendo un patron identico al del tejido testicular xy, aunque una velocidad inferior. En consecuencia, estos<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Expresion genica durante el desarrollo gonadal de talpa occidentalis.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Expresion genica durante el desarrollo gonadal de talpa occidentalis. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Francisco Javier Barrionuevo Jimenez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/12\/2001<\/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>Rafael Jimenez Medina<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Manuel (secretario) Garrido ramos <\/li>\n<li> Diaz de la guardia Rafael (vocal)<\/li>\n<li>Manuel Diez sancho (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Francisco Javier Barrionuevo Jimenez Las hembras del topo iberico, talpa occidentalis, presentan un caso de reversion sexual, [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[35,962,2119,1820,226],"tags":[47914,47911,47913,47915,47912],"class_list":["post-14954","post","type-post","status-publish","format-standard","hentry","category-ciencias-de-la-vida","category-genetica","category-genetica-animal","category-genetica-de-poblaciones","category-zoologia","tag-diaz-de-la-guardia-rafael","tag-francisco-javier-barrionuevo-jimenez","tag-manuel-secretario-garrido-ramos","tag-manuel-diez-sancho","tag-rafael-jimenez-medina"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/14954","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=14954"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/14954\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=14954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=14954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=14954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}