{"id":82356,"date":"2019-01-30T12:17:55","date_gmt":"2019-01-30T17:17:55","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/high-genetic-variation-genetic-parameters\/"},"modified":"2019-01-30T12:17:55","modified_gmt":"2019-01-30T17:17:55","slug":"high-genetic-variation-genetic-parameters","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/high-genetic-variation-genetic-parameters\/","title":{"rendered":"High genetic variation and moderate to high values for genetic parameters of Picea abies resistance to Pissodes strobi"},"content":{"rendered":"\n<p>Published in <strong>Tree Genetics &amp; Genomes 11: 58. <a href=\"https:\/\/doi.org\/10.1007\/s11295-015-0878-6\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1007\/s11295-015-0878-6<\/a><\/strong><\/p>\n<p>Genetic parameters of <em>Picea abies<\/em> resistance to the white pine weevil (<em>Pissodes strobi <\/em>Peck) were estimated from 193 full-sib and 166 half-sib families in six 10-year-old progeny trials. The estimated family and individual heritability values for the cumulative weevil attack rate between ages 6 and 10 (CWA<sub>6\u201310<\/sub>) were high and moderate for both full-sib families (0.61 and 0.28, respectively) and half-sib families (0.85 and 0.40, respectively), indicating strong genetic control for this trait in Norway spruce. The fact that specific combining ability (SCA) variance represents 35 % of the general combining ability (GCA) variance suggests that non-additive (dominant) effects are weak. The strong type B correlations found for CWA<sub>6\u201310 <\/sub>(<em>r<\/em> \u02c6 <sub>B<\/sub> =0.96&nbsp; for full-sib families and <em>r<\/em> \u02c6<sub> B<\/sub> =0.81&nbsp; for half-sib families) indicate that family ranks were stable across sites. For three of the five sites with high attack levels, genetic correlations were not significant between CWA<sub>6\u201310<\/sub> and tree height at age 5. Moderate positive genetic correlations were detected between CWA<sub>6\u201310<\/sub> and tree diameter at age 10 (<em>r<\/em> \u02c6<sub> A<\/sub>&nbsp;&nbsp; from 0.29 to 0.60), but specific families showing both high resistance and good diameter growth can be found. These results suggest that the genetic improvement of Norway spruce for resistance to white pine weevil can be achieved successfully without adversely affecting growth.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in Tree Genetics &amp; Genomes 11: 58. https:\/\/doi.org\/10.1007\/s11295-015-0878-6 Genetic parameters of Picea abies resistance to the white pine weevil (Pissodes strobi Peck) were estimated from 193 full-sib and 166 half-sib families in six 10-year-old progeny trials. The estimated family and individual heritability values for the cumulative weevil attack rate between ages 6 and 10 [&hellip;]<\/p>\n","protected":false},"template":"","format":"standard","cptt_secteur":[1179],"cptt_theme":[1186,1180,1181],"cptt_categ_publi":[1149],"cptt_auteurs_ministeriels":[1075,1100,1105],"class_list":["post-82356","cpt_publication","type-cpt_publication","status-publish","format-standard","hentry","cptt_secteur-forests","cptt_theme-forest-genetics","cptt_theme-forestry-research","cptt_theme-forests","cptt_categ_publi-scientific-article","cptt_auteurs_ministeriels-deblois-josianne","cptt_auteurs_ministeriels-m-h-mottet","cptt_auteurs_ministeriels-m-perron"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>High genetic variation and moderate to high values for genetic parameters of Picea abies resistance to Pissodes strobi - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"Our study suggests that genetic improvement of Norway spruce for resistance to white pine weevil can be achieved without affecting growth.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/high-genetic-variation-genetic-parameters\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"High genetic variation and moderate to high values for genetic parameters of Picea abies resistance to Pissodes strobi - 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Minist\u00e8re des Ressources naturelles et des For\u00eats","description":"Our study suggests that genetic improvement of Norway spruce for resistance to white pine weevil can be achieved without affecting growth.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/high-genetic-variation-genetic-parameters\/","og_locale":"en_US","og_type":"article","og_title":"High genetic variation and moderate to high values for genetic parameters of Picea abies resistance to Pissodes strobi - Minist\u00e8re des Ressources naturelles et des For\u00eats","og_description":"Our study suggests that genetic improvement of Norway spruce for resistance to white pine weevil can be achieved without affecting growth.","og_url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/high-genetic-variation-genetic-parameters\/","og_site_name":"Minist\u00e8re des Ressources naturelles et des For\u00eats","article_publisher":"https:\/\/www.facebook.com\/RessourcesNaturellesForets\/","og_image":[{"width":1200,"height":630,"url":"\/wp-content\/uploads\/Image-g%c3%a9n%c3%a9rale-hiver_FB.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@mrnfqc","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/high-genetic-variation-genetic-parameters\/","url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/high-genetic-variation-genetic-parameters\/","name":"High genetic variation and moderate to high values for genetic parameters of Picea abies resistance to Pissodes strobi - 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