{"id":6176,"date":"2025-08-21T13:36:39","date_gmt":"2025-08-21T11:36:39","guid":{"rendered":"https:\/\/www.agchamaeleons.de\/?p=6176"},"modified":"2025-08-21T13:38:39","modified_gmt":"2025-08-21T11:38:39","slug":"gencodierung-bei-chamaeleonzaehnen","status":"publish","type":"post","link":"https:\/\/www.agchamaeleons.de\/en\/gencodierung-bei-chamaeleonzaehnen\/","title":{"rendered":"Gene evolution in chameleon teeth"},"content":{"rendered":"

<\/p>\n

Chameleons have acrodont teeth, which means that their teeth are directly attached to the bone. Mammals, on the other hand, have so-called alveoli in which the teeth are seated. Scientists from Michigan (USA) have now investigated the genetic evolutionary development of tooth structures by comparing mammals with acrodont reptiles.<\/p>\n

To do this, they compared the genomes of 24 acrodont reptiles and 12 mammal species. The acrodont reptiles included the chameleon species Furcifer pardalis, Trioceros harennae<\/em> and Chamaeleo calyptratus<\/em>, as well as chameleons of the genera Chamaeleo, Bradypodion <\/em>and Trioceros that<\/em> were not identified at the species level. The genes for amino acids, from which certain proteins in tooth enamel are built, were compared using various calculations and analyses.<\/p>\n

The results showed that the loss of tooth replacement in acrodont reptiles did indeed lead to changes in the genes responsible for tooth enamel formation.<\/p>\n

Reduction of tooth replacement disproportionately affects the evolution of enamel matrix proteins
\n<\/strong>John Abramyan, Gengxin Li, Hannah Khansa
\nJournal of Molecular Evolution 93, 2025: 494-510.
\nDOI: 10.1007\/s00239-025-10258-4
\nKostenloser Download des Artikels<\/a><\/p>\n

Photo: Specimen of a panther chameleon skull with acrodont teeth, photographed by Alex Negro<\/p>","protected":false},"excerpt":{"rendered":"

Chameleons have acrodont teeth, which means that their teeth are directly attached to the bone. Mammals, on the other hand, have so-called alveoli in which the teeth are seated. Scientists from Michigan (USA) have now investigated the genetic evolutionary development of tooth structures by comparing mammals with acrodont reptiles. To do this, they compared the […]<\/p>\n","protected":false},"author":7,"featured_media":6177,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[834,29,131,263,298,657,38,835,24,755,833],"class_list":["post-6176","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wissenschaft","tag-akrodontie","tag-bradypodion","tag-chamaeleo","tag-chamaeleo-calyptratus","tag-furcifer-pardalis","tag-gene","tag-genetik","tag-pleurodontie","tag-trioceros","tag-trioceros-harennae","tag-zaehne"],"yoast_head":"\nGene evolution in chameleon teeth - AG Cham\u00e4leons<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.agchamaeleons.de\/en\/gencodierung-bei-chamaeleonzaehnen\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gene evolution in chameleon teeth - AG Cham\u00e4leons\" \/>\n<meta property=\"og:description\" content=\"Chameleons have acrodont teeth, which means that their teeth are directly attached to the bone. Mammals, on the other hand, have so-called alveoli in which the teeth are seated. Scientists from Michigan (USA) have now investigated the genetic evolutionary development of tooth structures by comparing mammals with acrodont reptiles. To do this, they compared the […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.agchamaeleons.de\/en\/gencodierung-bei-chamaeleonzaehnen\/\" \/>\n<meta property=\"og:site_name\" content=\"AG Cham\u00e4leons\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-21T11:36:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-21T11:38:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.agchamaeleons.de\/wp-content\/uploads\/2025\/08\/2025-Furcifer-pardalis-teeth-Alex-Laube.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"999\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alex Negro\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alex Negro\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.agchamaeleons.de\\\/gencodierung-bei-chamaeleonzaehnen\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.agchamaeleons.de\\\/gencodierung-bei-chamaeleonzaehnen\\\/\"},\"author\":{\"name\":\"Alex Negro\",\"@id\":\"https:\\\/\\\/www.agchamaeleons.de\\\/de\\\/#\\\/schema\\\/person\\\/b04500b4a994029068c4d5994e847ca3\"},\"headline\":\"Gene evolution in chameleon teeth\",\"datePublished\":\"2025-08-21T11:36:39+00:00\",\"dateModified\":\"2025-08-21T11:38:39+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.agchamaeleons.de\\\/gencodierung-bei-chamaeleonzaehnen\\\/\"},\"wordCount\":386,\"image\":{\"@id\":\"https:\\\/\\\/www.agchamaeleons.de\\\/gencodierung-bei-chamaeleonzaehnen\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.agchamaeleons.de\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/2025-Furcifer-pardalis-teeth-Alex-Laube.jpg\",\"keywords\":[\"Akrodontie\",\"Bradypodion\",\"Chamaeleo\",\"Chamaeleo calyptratus\",\"Furcifer pardalis\",\"Gene\",\"Genetik\",\"Pleurodontie\",\"Trioceros\",\"Trioceros harennae\",\"Z\u00e4hne\"],\"articleSection\":[\"Science\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.agchamaeleons.de\\\/en\\\/gencodierung-bei-chamaeleonzaehnen\\\/\",\"url\":\"https:\\\/\\\/www.agchamaeleons.de\\\/en\\\/gencodierung-bei-chamaeleonzaehnen\\\/\",\"name\":\"Gene evolution in chameleon teeth - 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