{"id":54001,"date":"2026-03-25T11:28:12","date_gmt":"2026-03-25T15:28:12","guid":{"rendered":"https:\/\/www.uqac.ca\/uqactualites\/?p=54001"},"modified":"2026-03-25T11:38:40","modified_gmt":"2026-03-25T15:38:40","slug":"la-structure-fine-de-la-population-du-saguenay-lac-saint-jean-revelee-par-sa-genealogie-et-sa-genetique","status":"publish","type":"post","link":"https:\/\/www.uqac.ca\/uqactualites\/2026\/03\/25\/la-structure-fine-de-la-population-du-saguenay-lac-saint-jean-revelee-par-sa-genealogie-et-sa-genetique\/","title":{"rendered":"La structure fine de la population du Saguenay\u2013Lac-Saint-Jean r\u00e9v\u00e9l\u00e9e par sa g\u00e9n\u00e9alogie et sa g\u00e9n\u00e9tique"},"content":{"rendered":"

Le professeur Simon Girard<\/a> et son \u00e9quipe ont r\u00e9cemment publi\u00e9 dans la prestigieuse revue Nature Communications un article d\u00e9crivant, \u00e0 un niveau de d\u00e9tail jamais atteint auparavant, la population du Saguenay\u2013Lac-Saint-Jean, tant sur le plan g\u00e9n\u00e9tique que g\u00e9n\u00e9alogique.<\/p>\n

Puisque le peuplement canadien-fran\u00e7ais au Saguenay\u2013Lac-St-Jean est tr\u00e8s r\u00e9cent (moins de deux cent ans), la population de cette r\u00e9gion est souvent r\u00e9put\u00e9e comme \u00e9tant \u00abhomog\u00e8ne\u00bb, notamment d\u00fb \u00e0 l\u2019important effet fondateur qui caract\u00e9rise la r\u00e9gion. Les travaux de l\u2019\u00e9quipe, qui s’inscrivent dans le projet de ma\u00eetrise en sant\u00e9 durable<\/a> de l’\u00e9tudiant Gilles-Philippe Morin, r\u00e9v\u00e8lent une structure fine de population \u00e0 l\u2019\u00e9chelle des villes et des villages! Ces diff\u00e9rences se sont form\u00e9es au fil de l\u2019histoire, notamment en raison des mouvements de population, des distances entre les villages et des dynamiques sociales et \u00e9conomiques. <\/span>L\u2019\u00e9tude sugg\u00e8re ainsi que chaque village poss\u00e8de sa propre signature g\u00e9n\u00e9tique et g\u00e9n\u00e9alogique! Cette signature pourrait avoir une influence dans la distribution des maladies rares qui affectent la r\u00e9gion. Finalement, l\u2019\u00e9tude sugg\u00e8re que des signatures similaires seraient pr\u00e9sentes dans d\u2019autres populations dans le monde alors qu\u2019elles sont pour le moment presque compl\u00e8tement ignor\u00e9es.<\/p>\n

Cette \u00e9tude met \u00e9galement en lumi\u00e8re une collaboration pr\u00e9cieuse avec le professeur de l\u2019Institut national de la recherche scientifique (INRS) associ\u00e9 \u00e0 l’UQAC Amadou Barry<\/a>, gr\u00e2ce \u00e0 l\u2019\u00e9tablissement de l\u2019Unit\u00e9 mixte de recherche INRS-UQAC<\/a>. L\u2019expertise du professeur Barry en statistiques et en math\u00e9matiques a \u00e9t\u00e9 pr\u00e9cieuse pour la r\u00e9alisation de l\u2019\u00e9tude.\u00a0<\/span><\/p>\n

L\u2019article est disponible en libre acc\u00e8s dans la revue <\/span>Nature Communications<\/span><\/i> : https:\/\/www.nature.com\/articles\/s41467-026-70175-y<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Le professeur Simon Girard et son \u00e9quipe ont r\u00e9cemment publi\u00e9 dans la prestigieuse revue Nature Communications un article d\u00e9crivant, \u00e0 un niveau de d\u00e9tail jamais atteint auparavant, la population du Saguenay\u2013Lac-Saint-Jean, tant sur le plan g\u00e9n\u00e9tique que g\u00e9n\u00e9alogique. Puisque le peuplement canadien-fran\u00e7ais au Saguenay\u2013Lac-St-Jean est tr\u00e8s r\u00e9cent (moins de deux cent ans), la population de […]<\/p>\n","protected":false},"author":5,"featured_media":54002,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2795,2,4],"tags":[340,3,2997],"yoast_head":"\r\nLa structure fine de la population du Saguenay\u2013Lac-Saint-Jean r\u00e9v\u00e9l\u00e9e par sa g\u00e9n\u00e9alogie et sa g\u00e9n\u00e9tique - UQACtualit\u00e9s<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.uqac.ca\/uqactualites\/2026\/03\/25\/la-structure-fine-de-la-population-du-saguenay-lac-saint-jean-revelee-par-sa-genealogie-et-sa-genetique\/\" \/>\r\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"La structure fine de la population du Saguenay\u2013Lac-Saint-Jean r\u00e9v\u00e9l\u00e9e par sa g\u00e9n\u00e9alogie et sa g\u00e9n\u00e9tique - UQACtualit\u00e9s\" \/>\r\n<meta property=\"og:description\" content=\"Le professeur Simon Girard et son \u00e9quipe ont r\u00e9cemment publi\u00e9 dans la prestigieuse revue Nature Communications un article d\u00e9crivant, \u00e0 un niveau de d\u00e9tail jamais atteint auparavant, la population du Saguenay\u2013Lac-Saint-Jean, tant sur le plan g\u00e9n\u00e9tique que g\u00e9n\u00e9alogique. Puisque le peuplement canadien-fran\u00e7ais au Saguenay\u2013Lac-St-Jean est tr\u00e8s r\u00e9cent (moins de deux cent ans), la population de […]\" \/>\r\n<meta property=\"og:url\" content=\"https:\/\/www.uqac.ca\/uqactualites\/2026\/03\/25\/la-structure-fine-de-la-population-du-saguenay-lac-saint-jean-revelee-par-sa-genealogie-et-sa-genetique\/\" \/>\r\n<meta property=\"og:site_name\" content=\"UQACtualit\u00e9s\" \/>\r\n<meta property=\"article:published_time\" content=\"2026-03-25T15:28:12+00:00\" \/>\r\n<meta property=\"article:modified_time\" content=\"2026-03-25T15:38:40+00:00\" \/>\r\n<meta property=\"og:image\" content=\"https:\/\/www.uqac.ca\/uqactualites\/wp-content\/uploads\/2026\/03\/NUM_CRCGenetique_A23-Uqctualite1920x1080.jpg\" \/>\r\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\r\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\r\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\r\n<meta name=\"author\" content=\"Service des communications et des relations publiques\" \/>\r\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\r\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Service des communications et des relations publiques\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimation du temps de lecture\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\r\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.uqac.ca\/uqactualites\/2026\/03\/25\/la-structure-fine-de-la-population-du-saguenay-lac-saint-jean-revelee-par-sa-genealogie-et-sa-genetique\/\",\"url\":\"https:\/\/www.uqac.ca\/uqactualites\/2026\/03\/25\/la-structure-fine-de-la-population-du-saguenay-lac-saint-jean-revelee-par-sa-genealogie-et-sa-genetique\/\",\"name\":\"La structure fine de la population du Saguenay\u2013Lac-Saint-Jean r\u00e9v\u00e9l\u00e9e par sa g\u00e9n\u00e9alogie et sa g\u00e9n\u00e9tique - 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