{"id":1098,"date":"2020-12-06T08:19:00","date_gmt":"2020-12-06T08:19:00","guid":{"rendered":"https:\/\/www.plant-phenomics.ac.uk\/?p=1098"},"modified":"2022-04-06T08:21:48","modified_gmt":"2022-04-06T08:21:48","slug":"total-flc-transcript-dynamics-from-divergent-paralogue-expression-explains-flowering-diversity-in-brassica-napus","status":"publish","type":"post","link":"https:\/\/www.plant-phenomics.ac.uk\/index.php\/2020\/12\/06\/total-flc-transcript-dynamics-from-divergent-paralogue-expression-explains-flowering-diversity-in-brassica-napus\/","title":{"rendered":"Total FLC transcript dynamics from divergent paralogue expression explains flowering diversity in Brassica napus"},"content":{"rendered":"\n<ul class=\"wp-block-list\"><li>Flowering time is a key adaptive and agronomic trait. In Arabidopsis, natural variation in expression levels of the floral repressor <em>FLOWERING LOCUS C<\/em> (<em>FLC<\/em>) leads to differences in vernalization. In <em>Brassica napus<\/em> there are nine copies of <em>FLC<\/em>. Here, we study how these multiple <em>FLC<\/em> paralogues determine vernalization requirement as a system.<\/li><li>We collected transcriptome time series for <em>Brassica napus<\/em> spring, winter, semi-winter, and Siberian kale crop types. Modelling was used to link <em>FLC<\/em> expression dynamics to floral response following vernalization.<\/li><li>We show that relaxed selection pressure has allowed expression of <em>FLC<\/em> paralogues to diverge, resulting in variation of <em>FLC<\/em> expression during cold treatment between paralogues and accessions. We find that total <em>FLC<\/em> expression dynamics best explains differences in cold requirement between cultivars, rather than expression of specific <em>FLC<\/em> paralogues.<\/li><li>The combination of multiple <em>FLC<\/em> paralogues with different expression dynamics leads to rich behaviour in response to cold and a wide range of vernalization requirements in <em>B. napus<\/em>. We find evidence for different strategies to determine the response to cold in existing winter rapeseed accessions. <\/li><\/ul>\n\n\n\n<p><a href=\"https:\/\/doi.org\/10.1111\/nph.17131\">https:\/\/doi.org\/10.1111\/nph.17131<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Flowering time is a key adaptive and agronomic trait. In Arabidopsis, natural variation in expression levels of the floral repressor FLOWERING LOCUS C (FLC) leads to differences in vernalization. In &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_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":[3],"tags":[],"class_list":["post-1098","post","type-post","status-publish","format-standard","hentry","category-publication"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Total FLC transcript dynamics from divergent paralogue expression explains flowering diversity in Brassica napus &#8212; National Plant Phenomics Centre<\/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.plant-phenomics.ac.uk\/index.php\/2020\/12\/06\/total-flc-transcript-dynamics-from-divergent-paralogue-expression-explains-flowering-diversity-in-brassica-napus\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Total FLC transcript dynamics from divergent paralogue expression explains flowering diversity in Brassica napus &#8212; National Plant Phenomics Centre\" \/>\n<meta property=\"og:description\" content=\"Flowering time is a key adaptive and agronomic trait. In Arabidopsis, natural variation in expression levels of the floral repressor FLOWERING LOCUS C (FLC) leads to differences in vernalization. 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