{"id":95203,"date":"2018-03-11T10:15:10","date_gmt":"2018-03-11T10:15:10","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/el-gen-doublesex-de-sciara-diptera-nematocera-sciaridae\/"},"modified":"2018-03-11T10:15:10","modified_gmt":"2018-03-11T10:15:10","slug":"el-gen-doublesex-de-sciara-diptera-nematocera-sciaridae","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/el-gen-doublesex-de-sciara-diptera-nematocera-sciaridae\/","title":{"rendered":"El gen doublesex de sciara  (diptera, nematocera, sciaridae)."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mercedes Alvarez Garcia <\/strong><\/h2>\n<p>Null la determinaci\u00f3n sexual es un proceso que se conoce bien en drosophila melanogaster. La caracterizaci\u00f3n molecular de los genes implicados y su organizaci\u00f3n jer\u00e1rquica han sido establecidas, lo que constituye el punto de partida para el aislamiento de  genes hom\u00f3logos en otras especies de insectos y estudiar as\u00ed los distintos mecanismos de determinaci\u00f3n sexual existentes. A pesar de las diferencias en la se\u00f1al primaria que controla el sexo, seg\u00fan la hip\u00f3tesis de wilkins (wilkins, 1995) existir\u00eda u na convergencia en la cascada a nivel del gen que ocupa la \u00faltima posici\u00f3n, el gen doublesex (dsx), que se transcribe en ambos sexos dando lugar a transcritos diferentes por un procesamiento alternativo. Se originan dos prote\u00ednas, dsxf y dsxm, que im ponen, respectivamente, un desarrollo tipo hembra y tipo macho al regular de forma antag\u00f3nica la transcripci\u00f3n de los genes de cito-diferenciaci\u00f3n sexual. En esta tesis doctoral se ha llevado a cabo el aislamiento y la caracterizaci\u00f3n de un gen en sc iara coprophila (scdsx) hom\u00f3logo al gen doublesex (dsx) encontrado en otros insectos.  el gen scdsx est\u00e1 formado por cuatro exones y tres intrones, y se transcribe, durante todo el desarrollo en los dos sexos dando lugar a cuatro productos de distint o tama\u00f1o por un procesamiento alternativo no espec\u00edfico de sexo. El transcrito mayoritario en machos codificar\u00eda una prote\u00edna putativa, scdsxm221, de 221 amino\u00e1cidos, que carece de la regi\u00f3n com\u00fan del dominio od2 presente en todas las prote\u00ednas dsxm caracterizadas hasta el momento. El transcrito m\u00e1s abundante en hembras codifica una prote\u00edna, scdsxf273, de 273 amino\u00e1cidos, hom\u00f3loga a la prote\u00edna dsxf de otros insectos. Las otras dos prote\u00ednas tipo hembra est\u00e1n muy poco representadas y se corresp onden con prote\u00ednas scdsxf273 truncadas. el transcrito primario de scdsx sigue los dos patrones alternativos, de hembra y de macho, en los dos sexos, aunque la efectividad de estos dos patrones si parece ser espec\u00edfica de sexo, lo cual requerir\u00eda de la existencia de factores espec\u00edficos, en hembras o en machos, que determinasen esas diferencias sexuales en la efectividad de los dos tipos del procesamiento. Al contrario de lo que ocurre en otros d\u00edpteros, en sciara el procesamiento del transcrito  primario del gen dsx es independiente de la prote\u00edna transformer. mediante la generaci\u00f3n de un anticuerpo policlonal espec\u00edfico contra la regi\u00f3n carboxilo-terminal de la prote\u00edna scdsxf273 hemos determinado que dicha prote\u00edna est\u00e1 presente en cantid<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>El gen doublesex de sciara  (diptera, nematocera, sciaridae).<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 El gen doublesex de sciara  (diptera, nematocera, sciaridae). <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mercedes Alvarez Garcia <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 14\/07\/2009<\/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>Lucas S\u00e1nchez Rodr\u00edguez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 M\u00aa Eir\u00edn l\u00f3pez <\/li>\n<li>  (vocal)<\/li>\n<li>  (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 Mercedes Alvarez Garcia Null la determinaci\u00f3n sexual es un proceso que se conoce bien en drosophila melanogaster. [&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":[1],"tags":[195940,38583,179726],"class_list":["post-95203","post","type-post","status-publish","format-standard","hentry","category-sin-categoria","tag-jose-ma-eirin-lopez","tag-lucas-sanchez-rodriguez","tag-mercedes-alvarez-garcia"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/95203","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=95203"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/95203\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=95203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=95203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=95203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}