{"id":18248,"date":"2019-07-16T08:29:54","date_gmt":"2019-07-16T08:29:54","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=18248"},"modified":"2019-07-16T08:29:54","modified_gmt":"2019-07-16T08:29:54","slug":"unveiling-the-genetic-secret-of-red-birds-vibrant-hues","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/ro\/science\/zoology\/unveiling-the-genetic-secret-of-red-birds-vibrant-hues\/","title":{"rendered":"Unde ob\u021bin p\u0103s\u0103rile ro\u0219ii nuan\u021bele lor vibrante? Dezv\u0103luirea secretului genetic"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Unde ob\u021bin p\u0103s\u0103rile ro\u0219ii nuan\u021bele lor vibrante<\/h2>\n\n<h2 class=\"wp-block-heading\">Dezv\u0103luirea secretului genetic<\/h2>\n\n<p>\u00cen tapiseria vibrant\u0103 a naturii, p\u0103s\u0103rile ro\u0219ii ies \u00een eviden\u021b\u0103 ca spectacole captivante. Penele lor str\u0103lucesc cu o str\u0103lucire purpurie, un mister care i-a intrigat mult timp pe oamenii de \u0219tiin\u021b\u0103. Dou\u0103 studii revolu\u021bionare au scos acum la lumin\u0103 la baza genetic\u0103 a acestei colora\u021bii remarcabile.<\/p>\n\n<p>\u00cen centrul misterului se afl\u0103 o gen\u0103 cunoscut\u0103 sub numele de CYP2J19. Aceast\u0103 gen\u0103 este responsabil\u0103 pentru convertirea carotenoidilor galbeni, pigmen\u021bi g\u0103si\u021bi \u00een plante, \u00een cetocarotenoide ro\u0219ii, care dau penelor p\u0103s\u0103rilor nuan\u021ba lor distinctiv\u0103. Cercet\u0103torii au descoperit c\u0103 CYP2J19 este deosebit de activ \u00een p\u0103s\u0103rile cu pene ro\u0219ii, permi\u021b\u00e2ndu-le s\u0103 produc\u0103 culorile vibrante care le \u00eempodobesc penajul.<\/p>\n\n<h2 class=\"wp-block-heading\">Puzzle-ul evolutiv<\/h2>\n\n<p>De\u0219i mecanismul genetic din spatele colora\u021biei ro\u0219ii a fost descoperit, scopul evolutiv r\u0103m\u00e2ne o enigm\u0103. De ce ar evolua p\u0103s\u0103rile pentru a afi\u0219a culori at\u00e2t de evidente care le-ar putea face mai vulnerabile la pr\u0103d\u0103tori?<\/p>\n\n<p>O ipotez\u0103 intrigant\u0103 sugereaz\u0103 c\u0103 colora\u021bia ro\u0219ie ar putea fi un semnal de s\u0103n\u0103tate \u0219i fitness. Gena care produce cetocarotenoide ro\u0219ii este, de asemenea, asociat\u0103 cu metabolismul toxinelor. Aceasta \u00eenseamn\u0103 c\u0103 p\u0103s\u0103rile cu pene ro\u0219ii mai str\u0103lucitoare ar putea fi mai capabile s\u0103 detoxifice substan\u021bele chimice nocive pe care le consum\u0103 \u00een dieta lor. Cu alte cuvinte, nuan\u021bele lor vibrante ar putea fi o dovad\u0103 a capacit\u0103\u021bii lor de a rezista provoc\u0103rilor de mediu.<\/p>\n\n<h2 class=\"wp-block-heading\">Aplica\u021bii comerciale<\/h2>\n\n<p>Descoperirea genei responsabile pentru colora\u021bia ro\u0219ie la p\u0103s\u0103ri a st\u00e2rnit, de asemenea, interesul pentru poten\u021bialele sale aplica\u021bii comerciale. Cetocarotenoidele ro\u0219ii sunt foarte apreciate \u00een industria alimentar\u0103 ca \u0219i coloran\u021bi naturali. De exemplu, o versiune artificial\u0103 de astaxantin\u0103, un pigment ro\u0219u g\u0103sit \u00een ochii unor p\u0103s\u0103ri, este folosit\u0103 pentru a da somonului de cresc\u0103torie nuan\u021ba sa roz.<\/p>\n\n<p>Cercet\u0103torii cred c\u0103 \u00een\u021belegerea bazei genetice a colora\u021biei ro\u0219ii la p\u0103s\u0103ri ar putea conduce la dezvoltarea unor clase noi \u0219i \u00eembun\u0103t\u0103\u021bite de coloran\u021bi industriali, extinz\u00e2nd \u0219i mai mult aplica\u021biile acestor pigmen\u021bi valoro\u0219i.<\/p>\n\n<h2 class=\"wp-block-heading\">P\u0103s\u0103rile ro\u0219ii: o simfonie a naturii<\/h2>\n\n<p>Nuan\u021bele vibrante ale p\u0103s\u0103rilor ro\u0219ii sunt o dovad\u0103 a interac\u021biunii complicate dintre genetic\u0103, evolu\u021bie \u0219i c\u0103utarea neobosit\u0103 a supravie\u021buirii. Penele lor nu sunt doar decorative, ci servesc drept o p\u00e2nz\u0103 pe care este pictat\u0103 povestea biologiei lor. De la ad\u00e2ncurile ascunse ale codului lor genetic p\u00e2n\u0103 la expunerea orbitoare a penajului lor, p\u0103s\u0103rile ro\u0219ii ne captiveaz\u0103 cu frumuse\u021bea lor \u0219i cu secretele pe care le de\u021bin.<\/p>\n\n<h2 class=\"wp-block-heading\">Informa\u021bii suplimentare<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Colora\u021bia ro\u0219ie este un fenomen relativ rar \u00een regnul animal din cauza vizibilit\u0103\u021bii sale ridicate \u0219i a poten\u021bialului de a atrage pr\u0103d\u0103tori.<\/li>\n<li>Gena CYP2J19 este prezent\u0103 at\u00e2t la speciile de p\u0103s\u0103ri cu pene ro\u0219ii, c\u00e2t \u0219i la speciile de p\u0103s\u0103ri mai terne, dar activitatea sa este semnificativ mai mare la p\u0103s\u0103rile ro\u0219ii.<\/li>\n<li>S-a constatat c\u0103 \u021besuturile zebra cu cioc ro\u0219u studiate \u00eentr-una dintre echipele de cercetare purtau gena CYP2J19, \u00een timp ce \u021besuturile cu cioc galben nu aveau gena.<\/li>\n<li>Descoperirea genei CYP2J19 a deschis noi c\u0103i pentru cercetarea genetic\u0103 a colora\u021biei p\u0103s\u0103rilor \u0219i a poten\u021bialelor sale aplica\u021bii \u00een diverse industrii.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Unde ob\u021bin p\u0103s\u0103rile ro\u0219ii nuan\u021bele lor vibrante Dezv\u0103luirea secretului genetic \u00cen tapiseria vibrant\u0103 a naturii, p\u0103s\u0103rile ro\u0219ii ies \u00een eviden\u021b\u0103 ca spectacole captivante. Penele lor str\u0103lucesc cu o str\u0103lucire purpurie,&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[280],"tags":[23872,136,188,252,23871,97],"class_list":["post-18248","post","type-post","status-publish","format-standard","hentry","category-zoology","tag-bird-coloration","tag-evolution","tag-genetics","tag-nature","tag-red-birds","tag-science"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/18248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/comments?post=18248"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/18248\/revisions"}],"predecessor-version":[{"id":18249,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/18248\/revisions\/18249"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/media?parent=18248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/categories?post=18248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/tags?post=18248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}