{"id":81798,"date":"2018-03-10T00:05:41","date_gmt":"2018-03-10T00:05:41","guid":{"rendered":""},"modified":"2018-03-10T00:05:41","modified_gmt":"2018-03-10T00:05:41","slug":"analisis-ultraestructural-de-los-cromosomas-politenicos-de-drosophila-subobscura-estudio-del-patron-de-bandas-y-caracterizacion-de-regiones-homologas-entre-drosophila-subobscura-y-drosophila-melanoga","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/analisis-ultraestructural-de-los-cromosomas-politenicos-de-drosophila-subobscura-estudio-del-patron-de-bandas-y-caracterizacion-de-regiones-homologas-entre-drosophila-subobscura-y-drosophila-melanoga\/","title":{"rendered":"An\u00e1lisis ultraestructural de los cromosomas polit\u00e9nicos de drosophila subobscura: estudio del patr\u00f3n de bandas y caracterizaci\u00f3n de regiones hom\u00f3logas entre drosophila subobscura y drosophila melanogaster."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Cuenca Pardo Juan  Bautista <\/strong><\/h2>\n<p>Se ha llevado a cabo un an\u00e1lisis a microscopia electr\u00f3nica de los cromosomas polit\u00e9nicos de drosophila subobscura, con dos objetivos principales alcanzados.  1- la elaboraci\u00f3n de un mapa global de los 5 cromosomas que consituyen el cariotipod e dicha especie. Hemos observado un gran n\u00famero de discrpancias conrespecto al mapa de referencia, tanto en el n\u00famero de bandas como en la morfolog\u00eda de las mismas.  generalmente las estructuras cromos\u00f3micas observadas en las micrograf\u00edas electr\u00f3nicas muestran mayor gradode compactaci\u00f3n que el descrito en el mapa de referencia. Adem\u00e1s, se han detectado una serie de puntos de apareamientos ect\u00f3picos y roturas cromos\u00f3micas coincidentes con el mapa preliminar de puntos de rotura y apareamientos ect\u00f3picos.  en algunos puffs crmos\u00f3micos hemos podido determianar su localizaci\u00f3n y analizar las estructuras implicadas en su desarrollo.  2- se ha llevado a cabo un an\u00e1lisis ultraestructural de ciertas rgiones hom\u00f3logas entre drosophla subobscura y drosophila melanogaster, a trav\u00e9s de la hibridaci\u00f3n in situ con sondas de drosophila melanogaster. El an\u00e1lisis ultraestructural de los puntos de hibridaci\u00f3n hom\u00f3logos en ambas especies es similar, extendi\u00e9ndose la homolog\u00eda a las regiones flanqueantes. El an\u00e1lisis de los puntos de hibridaci\u00f3n nos ha permitido confirmar que no se da p\u00e9rdida de la integridad estructural de los elementos cromos\u00f3micos hom\u00f3logos en ambas especies. Adem\u00e1s hemos poido deducir, a partir del an\u00e1lisis ultraestructural de ciertas regiones cromos\u00f3micas, que se da un mantenimiento de bloques cromos\u00f3micos a pesar de la divegencia evolutiva existente entre ambas especies.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisis ultraestructural de los cromosomas polit\u00e9nicos de drosophila subobscura: estudio del patr\u00f3n de bandas y caracterizaci\u00f3n de regiones hom\u00f3logas entre drosophila subobscura y drosophila melanogaster.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisis ultraestructural de los cromosomas polit\u00e9nicos de drosophila subobscura: estudio del patr\u00f3n de bandas y caracterizaci\u00f3n de regiones hom\u00f3logas entre drosophila subobscura y drosophila melanogaster. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Cuenca Pardo Juan  Bautista <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 17\/12\/1999<\/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>Rosa De Frutos Ill\u00e1n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: amparo Latorre castillo <\/li>\n<li> Santa-cruz aleman M\u00aa carmen (vocal)<\/li>\n<li>anja Orvokki saura (vocal)<\/li>\n<li> Tineo roberto pedro Luis (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Cuenca Pardo Juan Bautista Se ha llevado a cabo un an\u00e1lisis a microscopia electr\u00f3nica de los cromosomas [&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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