{"id":122074,"date":"2021-07-26T01:21:02","date_gmt":"2021-07-26T08:21:02","guid":{"rendered":"https:\/\/www.pandasilk.com\/inheritance-of-cocoon-colors-white-yellow-green\/"},"modified":"2025-01-15T10:40:06","modified_gmt":"2025-01-15T18:40:06","slug":"inheritance-of-cocoon-colors-white-yellow-green","status":"publish","type":"post","link":"https:\/\/www.pandasilk.com\/cs\/inheritance-of-cocoon-colors-white-yellow-green\/","title":{"rendered":"D\u011bdi\u010dnost barev kokon\u016f: b\u00edl\u00e1, \u017elut\u00e1, zelen\u00e1"},"content":{"rendered":"

D\u011bdi\u010dnost barvy kokon\u016f, a\u0165 u\u017e b\u00edl\u00e9, \u017elut\u00e9 \u010di zelen\u00e9, je fascinuj\u00edc\u00edm t\u00e9matem, kter\u00e9 propojuje genetiku, biologii a v kone\u010dn\u00e9m d\u016fsledku i vlastnosti v\u00fdsledn\u00e9ho hedv\u00e1b\u00ed. Pochopen\u00ed princip\u016f, kter\u00e9 za touto barevnou variabilitou stoj\u00ed, je kl\u00ed\u010dov\u00e9 pro \u0161lechtitele bource moru\u0161ov\u00e9ho i pro samotn\u00e9 zpracovatele hedv\u00e1b\u00ed. V tomto \u010dl\u00e1nku se detailn\u011bji pod\u00edv\u00e1me na genetick\u00e9 mechanismy, kter\u00e9 ur\u010duj\u00ed barvu kokonu, a na faktory, kter\u00e9 mohou ovlivnit jej\u00ed v\u00fdsledn\u00fd odst\u00edn.<\/p>\n

Genetika barvy kokonu<\/h3>\n

Barva kokonu bource moru\u0161ov\u00e9ho (Bombyx mori) je prim\u00e1rn\u011b ur\u010dena geneticky. Existuj\u00ed dominantn\u00ed a recesivn\u00ed alely, kter\u00e9 kontroluj\u00ed produkci pigment\u016f, jako jsou karotenoidy a flavonoidy, kter\u00e9 se ukl\u00e1daj\u00ed do hedv\u00e1bn\u00e9ho vl\u00e1kna. Dominantn\u00ed alela obvykle k\u00f3duje pro \u017elutou barvu, zat\u00edmco recesivn\u00ed alela pro b\u00edlou. Zelen\u00e1 barva je v\u00fdsledkem komplexn\u011bj\u0161\u00ed interakce gen\u016f a m\u016f\u017ee b\u00fdt ovlivn\u011bna i faktory prost\u0159ed\u00ed.<\/p>\n

Vliv dominantn\u00edch a recesivn\u00edch alel<\/h3>\n
    \n
  1. B\u00edl\u00e1 barva:<\/strong> B\u00edl\u00e9 kokony jsou v\u00fdsledkem p\u0159\u00edtomnosti dvou recesivn\u00edch alel pro barvu. Absence pigment\u016f vede k b\u00edl\u00e9 barv\u011b vl\u00e1kna.<\/li>\n
  2. \u017dlut\u00e1 barva:<\/strong> \u017dlut\u00e9 kokony jsou produkov\u00e1ny jedinci s alespo\u0148 jednou dominantn\u00ed alelou pro \u017elutou barvu. Intenzita \u017elut\u00e9 m\u016f\u017ee b\u00fdt ovlivn\u011bna p\u0159\u00edtomnost\u00ed jedn\u00e9 \u010di dvou dominantn\u00edch alel.<\/li>\n
  3. Zelen\u00e1 barva:<\/strong> Zelen\u00e1 barva je komplexn\u011bj\u0161\u00ed a je v\u00fdsledkem kombinace genetick\u00fdch faktor\u016f a vlivu prost\u0159ed\u00ed. N\u011bkter\u00e9 studie nazna\u010duj\u00ed, \u017ee zelen\u00e1 barva m\u016f\u017ee b\u00fdt zp\u016fsobena interakc\u00ed mezi geny pro \u017elutou barvu a geny reguluj\u00edc\u00edmi metabolismus chlorofylu.<\/li>\n<\/ol>\n

    Tabulka: P\u0159ehled d\u011bdi\u010dnosti barvy kokonu<\/h3>\n\n\n\n\n\n\n\n\n\n
    Genotyp rodi\u010d\u016f<\/th>\nMo\u017en\u00e9 genotypy potomk\u016f<\/th>\nFenotyp potomk\u016f<\/th>\n<\/tr>\n<\/thead>\n
    \u017dlut\u00fd (YY) x \u017dlut\u00fd (YY)<\/td>\nYY<\/td>\n100% \u017dlut\u00e9 kokony<\/td>\n<\/tr>\n
    \u017dlut\u00fd (YY) x B\u00edl\u00fd (yy)<\/td>\nYy<\/td>\n100% \u017dlut\u00e9 kokony<\/td>\n<\/tr>\n
    \u017dlut\u00fd (Yy) x \u017dlut\u00fd (Yy)<\/td>\nYY, Yy, yy<\/td>\n75% \u017dlut\u00e9 kokony, 25% B\u00edl\u00e9 kokony<\/td>\n<\/tr>\n
    \u017dlut\u00fd (Yy) x B\u00edl\u00fd (yy)<\/td>\nYy, yy<\/td>\n50% \u017dlut\u00e9 kokony, 50% B\u00edl\u00e9 kokony<\/td>\n<\/tr>\n
    B\u00edl\u00fd (yy) x B\u00edl\u00fd (yy)<\/td>\nyy<\/td>\n100% B\u00edl\u00e9 kokony<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Vliv prost\u0159ed\u00ed<\/h3>\n

    I kdy\u017e je barva kokonu prim\u00e1rn\u011b geneticky determinov\u00e1na, vn\u011bj\u0161\u00ed faktory mohou hr\u00e1t roli v kone\u010dn\u00e9m odst\u00ednu. Strava bource moru\u0161ov\u00e9ho, teplota a vlhkost b\u011bhem v\u00fdvoje kokonu mohou ovlivnit intenzitu a odst\u00edn barvy. Nap\u0159\u00edklad, n\u011bkte\u0159\u00ed chovatel\u00e9 bource moru\u0161ov\u00e9ho p\u0159id\u00e1vaj\u00ed do krmen\u00ed moru\u0161e specifick\u00e9 l\u00e1tky, kter\u00e9 mohou ovlivnit barvu kokonu.<\/p>\n

    Z\u00e1v\u011br<\/h3>\n

    D\u011bdi\u010dnost barvy kokonu bource moru\u0161ov\u00e9ho je komplexn\u00ed proces, kter\u00fd je \u0159\u00edzen genetick\u00fdmi mechanismy a ovliv\u0148ov\u00e1n faktory prost\u0159ed\u00ed. Pochopen\u00ed t\u011bchto princip\u016f je d\u016fle\u017eit\u00e9 pro \u0161lecht\u011bn\u00ed bource moru\u0161ov\u00e9ho s po\u017eadovan\u00fdmi vlastnostmi hedv\u00e1b\u00ed a pro optimalizaci proces\u016f zpracov\u00e1n\u00ed hedv\u00e1b\u00ed. Dal\u0161\u00ed v\u00fdzkum v t\u00e9to oblasti by mohl v\u00e9st k v\u00fdvoji nov\u00fdch metod pro kontrolu barvy kokonu a k produkci hedv\u00e1b\u00ed s unik\u00e1tn\u00edmi vlastnostmi a odst\u00edny.<\/p>\n","protected":false},"excerpt":{"rendered":"

    D\u011bdi\u010dnost barvy kokon\u016f, a\u0165 u\u017e b\u00edl\u00e9, \u017elut\u00e9 \u010di zelen\u00e9, je fascinuj\u00edc\u00edm t\u00e9matem, kter\u00e9 propojuje genetiku, biologii a v kone\u010dn\u00e9m d\u016fsledku i vlastnosti v\u00fdsledn\u00e9ho hedv\u00e1b\u00ed. Pochopen\u00ed princip\u016f, kter\u00e9 za touto barevnou variabilitou stoj\u00ed, je kl\u00ed\u010dov\u00e9 pro \u0161lechtitele bource moru\u0161ov\u00e9ho i pro samotn\u00e9 zpracovatele hedv\u00e1b\u00ed. V tomto \u010dl\u00e1nku se detailn\u011bji pod\u00edv\u00e1me na genetick\u00e9 mechanismy, kter\u00e9 ur\u010duj\u00ed barvu<\/p>\n","protected":false},"author":1,"featured_media":75827,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37831],"tags":[],"class_list":["post-122074","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sericulture-cs","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts\/122074","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/comments?post=122074"}],"version-history":[{"count":0,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts\/122074\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media\/75827"}],"wp:attachment":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media?parent=122074"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/categories?post=122074"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/tags?post=122074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}