{"id":138223,"date":"2014-04-02T08:00:09","date_gmt":"2014-04-02T06:00:09","guid":{"rendered":"http:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/?p=138223"},"modified":"2014-02-28T14:17:33","modified_gmt":"2014-02-28T12:17:33","slug":"con-suma-brevedad-en-el-parrafo-quingentesimo-noveno-de-el-origen-de-las-especies","status":"publish","type":"post","link":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/2014\/04\/02\/138223","title":{"rendered":"Con suma brevedad en el p\u00e1rrafo quingent\u00e9simo noveno de El Origen de las Especies"},"content":{"rendered":"<p><em>Sin embargo, la variabilidad en las generaciones sucesivas de mestizos es quiz\u00e1 mayor que en los h\u00edbridos.<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>Sin duda.\u00a0 Los\u00a0 h\u00edbridos son menos f\u00e9rtiles.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\"><em>509<\/em><\/p>\n<p style=\"text-align: justify;\"><em>I shall here discuss this subject with extreme brevity. The most important distinction is, that in the first generation mongrels are more variable than hybrids; but Gartner admits that hybrids from species which have long been cultivated are often variable in the first generation; and I have myself seen striking instances of this fact. Gartner further admits that hybrids between very closely allied species are more variable than those from very distinct species; and this shows that the difference in the degree of variability graduates away. When mongrels and the more fertile hybrids are propagated for several generations, an extreme amount of variability in the offspring in both cases is notorious; but some few instances of both hybrids and mongrels long retaining a uniform character could be given. The variability, however, in the successive generations of mongrels is, perhaps, greater than in hybrids.<\/em><\/p>\n<p style=\"text-align: justify;\"><em>\u00a0<\/em><\/p>\n<p style=\"text-align: justify;\"><em>Discutir\u00e9 aqu\u00ed este asunto con suma brevedad. La diferencia m\u00e1s importante es que, en la primera generaci\u00f3n, los mestizos son m\u00e1s variables que los h\u00edbridos; pero G\u00e4rtner admite que los h\u00edbridos de especies que han sido cultivadas durante mucho tiempo son con frecuencia variables en la primera generaci\u00f3n, y yo mismo he visto ejemplos llamativos de este hecho. G\u00e4rtner admite, adem\u00e1s, que los h\u00edbridos entre especies muy pr\u00f3ximas son m\u00e1s variables que los de especies muy diferentes, y esto muestra que la diferencia en el grado de variabilidad desaparece gradualmente. Cuando los h\u00edbridos m\u00e1s fecundos y los mestizos se propagan por varias generaciones, es notoria, en ambos casos, una extrema variabilidad en la descendencia; pero podr\u00edan citarse algunos ejemplos tanto de h\u00edbridos como de mestizos que conservaron mucho tiempo un car\u00e1cter uniforme. Sin embargo, la variabilidad en las generaciones sucesivas de mestizos es quiz\u00e1 mayor que en los h\u00edbridos.<\/em><\/p>\n<p style=\"text-align: justify;\">\n<p>Lectura aconsejada:<\/p>\n<ul>\n<li><a href=\"https:\/\/digital.csic.es\/handle\/10261\/76630\"> Manual para detectar la impostura cient\u00edfica: Examen del libro de Darwin por Flourens.<\/a> Digital CSIC, 2013. 225 p\u00e1ginas.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Sin embargo, la variabilidad en las generaciones sucesivas de mestizos es quiz\u00e1 mayor que en los h\u00edbridos. &nbsp; Sin duda.\u00a0 Los\u00a0 h\u00edbridos son menos f\u00e9rtiles. &nbsp; &nbsp; &nbsp; &nbsp; 509 I shall here discuss this subject with extreme brevity. The most important distinction is, that in the first generation mongrels are more variable than hybrids; but Gartner admits that hybrids from species which have long been cultivated are often variable in the first generation; and I have myself seen striking instances of this fact. Gartner further admits that hybrids between very closely allied species are more variable than those from\u2026<\/p>\n","protected":false},"author":86,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[467],"tags":[],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":4}},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts\/138223"}],"collection":[{"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/users\/86"}],"replies":[{"embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/comments?post=138223"}],"version-history":[{"count":2,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts\/138223\/revisions"}],"predecessor-version":[{"id":138237,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts\/138223\/revisions\/138237"}],"wp:attachment":[{"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/media?parent=138223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/categories?post=138223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/tags?post=138223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}