{"id":56431,"date":"2018-03-09T22:44:14","date_gmt":"2018-03-09T22:44:14","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/caracterizacion-genetica-y-molecular-de-los-mutantes-hemivenata-de-arabidopsis-thaliana-2\/"},"modified":"2018-03-09T22:44:14","modified_gmt":"2018-03-09T22:44:14","slug":"caracterizacion-genetica-y-molecular-de-los-mutantes-hemivenata-de-arabidopsis-thaliana-2","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/caracterizacion-genetica-y-molecular-de-los-mutantes-hemivenata-de-arabidopsis-thaliana-2\/","title":{"rendered":"Caracterizaci\u00f3n gen\u00e9tica y molecular de los mutantes hemivenata de arabidopsis thaliana"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Alonso Peral Mar\u00eda  Magdalena <\/strong><\/h2>\n<p>El sistema vascular de los organismos pluricelulares forma parte de una familia de estructuras biol\u00f3gicas ramificadas arborescentemente, jerarquizadas y tridimensionales, que tambi\u00e9n incluye a los sistemas respiratorios y nerviosos de muchas especies animales. Para disecarlas reglas generativas de estas topolog\u00edas pueden utilizarse como modelo los patrones de venaci\u00f3n de las hojas de las plantas y alas de los insectos, que son bidimensionales y muy sencillos. En esta tesis doctoral hemos estudiado los mutantes hemivenata (hve), que presentan alteraciones en su patr\u00f3n de venaci\u00f3n foliar. Hemos clonado posicionalmente el gen hve y caracterizado tres de sus alelos mutantes, hve-1, hve-2 y hve-3, a nivel molecular y fenotipico. Estos mutantes presentan un patr\u00f3n de venaci\u00f3n foliar muy simple, con un n\u00famero de venas secundarias y terciarias muy inferior al silvestre, y ausencia o acortamiento de las de orden superior. Los mutantes hve tambi\u00e9n manifiestan una floraci\u00f3n y senescencia retrasadas, disminuci\u00f3n de la fertilidad, porte arbustivo y ausencia de ondulaciones en la ra\u00edz. Algunos de estos rasgos recuerdan a los mutantes alerados en la percepci\u00f3n de la auxina. Hemos establecido que los mutantes hve son ligeramente insensibles a auxina, aunque responden como el tipo silvestre a los inhibidores del transporte de esta hormona. El producto del ben hve es una prote\u00edna cand1 (cullin-associated and neddylation-dissociated1) cuya participaci\u00f3n en la ubiquitinaci\u00f3n ha sido demostrada en c\u00e9lulas de mam\u00edfero. El alelo espont\u00e1neo hve-1 altera el procesamiento de los transcritos del gen hve, y hve-2 y hve-3 son portadores de inserciones de adn-t. El tama\u00f1o de la inflorescencia y la fertilidad son reducidos m\u00e1s severamente por hve-2 y hve-3 que por hve-1, lo que sugiere que este \u00faltimo alelo es hipomorfo.  el patr\u00f3n de venaci\u00f3n sencillo de las plantas hve parece deberse a un defecto temprano en el desarrollo del patr\u00f3n de venaci\u00f3n. Hemos determinado in<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Caracterizaci\u00f3n gen\u00e9tica y molecular de los mutantes hemivenata de arabidopsis thaliana<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Caracterizaci\u00f3n gen\u00e9tica y molecular de los mutantes hemivenata de arabidopsis thaliana <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Alonso Peral Mar\u00eda  Magdalena <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Miguel hern\u00e1ndez de elche<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/12\/2006<\/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>Jos\u00e9 Luis Micol Molina<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  Luis Santos coloma <\/li>\n<li> Jarillo quiroga Jos\u00e9 Antonio (vocal)<\/li>\n<li>soraya Pelaez herrero (vocal)<\/li>\n<li>Antonio Molina fern\u00e1ndez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Alonso Peral Mar\u00eda Magdalena El sistema vascular de los organismos pluricelulares forma parte de una familia de [&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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