{"id":5500,"date":"2021-07-07T16:24:39","date_gmt":"2021-07-07T20:24:39","guid":{"rendered":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/?p=5500"},"modified":"2021-07-07T16:30:12","modified_gmt":"2021-07-07T20:30:12","slug":"deux-nouveaux-articles-sur-la-genomique-des-composes-phenoliques-de-defense-chez-lepinette-blanche-et-sur-la-detection-par-profilage-genomique-de-la-contamination-pollinique-et-de-li","status":"publish","type":"post","link":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/?p=5500","title":{"rendered":"Deux nouveaux articles sur la g\u00e9nomique des compos\u00e9s ph\u00e9noliques de d\u00e9fense chez l\u2019\u00e9pinette blanche et sur la d\u00e9tection par profilage g\u00e9nomique de la contamination pollinique et de l\u2019impact de la s\u00e9lection dans un verger \u00e0 graines d\u2019\u00e9pinette blanche d\u2019Alberta"},"content":{"rendered":"\n

Une nouvelle publication de Justine Laou\u00e9 et collaborateurs a permis d\u2019identifier un lot de g\u00e8nes impliqu\u00e9s dans la synth\u00e8se des compos\u00e9s ph\u00e9noliques de d\u00e9fense chez l\u2019\u00e9pinette blanche gr\u00e2ce \u00e0 l\u2019utilisation conjointe d\u2019approches de QTL et de RNA-Seq. Un QTL majeur en lien avec la concentration en n\u00e9olignane-2 a notamment \u00e9t\u00e9 identifi\u00e9, ainsi qu\u2019un lot de 50 g\u00e8nes directement associ\u00e9s \u00e0 la voie m\u00e9tabolique des ph\u00e9nylpropano\u00efdes et diff\u00e9rentiellement exprim\u00e9s chez des arbres pr\u00e9sentant des niveaux de concentration oppos\u00e9s en flavono\u00efdes, stilbeno\u00efdes et n\u00e9olignanes. Ce travail apporte un nouvel \u00e9clairage quant aux g\u00e8nes impliqu\u00e9s dans la r\u00e9ponse aux stress biotiques et abiotiques chez l\u2019\u00e9pinette blanche. Lien vers la publication<\/a>.<\/p>\n\n\n\n

Un article de Galeano et collaborateurs, bas\u00e9 sur des donn\u00e9es de puce de g\u00e9notypage, a mis en \u00e9vidence un taux de contamination pollinique moyen d\u2019environ 30% dans un verger \u00e0 graines \u00e0 pollinisation libre d\u2019\u00e9pinette blanche d\u2019Alberta. Il a \u00e9t\u00e9 d\u00e9termin\u00e9 que le pollen exog\u00e8ne provenait d\u2019une source localis\u00e9e \u00e0 environ 1 kilom\u00e8tre du verger, en amont des vents dominants. De plus, ce travail a montr\u00e9 que la s\u00e9lection de 35% des arbres du verger, afin d\u2019obtenir un gain g\u00e9n\u00e9tique en hauteur de 5%, entra\u00eenerait une baisse de taille effective par un facteur de huit, sans toutefois avoir d\u2019effet n\u00e9gatif sur l\u2019h\u00e9t\u00e9rozygotie observ\u00e9e ou la consanguinit\u00e9. Lien vers la publication<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Une nouvelle publication de Justine Laou\u00e9 et collaborateurs a permis d\u2019identifier un lot de g\u00e8nes impliqu\u00e9s dans la synth\u00e8se des compos\u00e9s ph\u00e9noliques de d\u00e9fense chez l\u2019\u00e9pinette blanche gr\u00e2ce \u00e0 l\u2019utilisation conjointe d\u2019approches de QTL et de RNA-Seq. Un QTL majeur … Continuer la lecture →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[],"class_list":["post-5500","post","type-post","status-publish","format-standard","hentry","category-actualites"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p3LOEb-1qI","_links":{"self":[{"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=\/wp\/v2\/posts\/5500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5500"}],"version-history":[{"count":2,"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=\/wp\/v2\/posts\/5500\/revisions"}],"predecessor-version":[{"id":5505,"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=\/wp\/v2\/posts\/5500\/revisions\/5505"}],"wp:attachment":[{"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.genomiqueforestiere.chaire.ulaval.ca\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}