{"id":4846,"date":"2021-04-09T11:25:15","date_gmt":"2021-04-09T09:25:15","guid":{"rendered":"https:\/\/ist.blogs.inrae.fr\/afs\/?p=4846"},"modified":"2021-04-09T11:25:15","modified_gmt":"2021-04-09T09:25:15","slug":"cold-and-heat-tolerances-of-hybrids-for-restoration-of-the-endangered-juglans-cinerea-l","status":"publish","type":"post","link":"https:\/\/ist.blogs.inrae.fr\/afs\/2021\/04\/09\/cold-and-heat-tolerances-of-hybrids-for-restoration-of-the-endangered-juglans-cinerea-l\/","title":{"rendered":"Cold and heat tolerances of hybrids for restoration of the endangered Juglans cinerea L"},"content":{"rendered":"<script type='text\/javascript' src='https:\/\/d1bxh8uas1mnw7.cloudfront.net\/assets\/embed.js'><\/script><p><strong><a href=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2021\/04\/Brennan-2021.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4849 alignright\" src=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2021\/04\/Brennan-2021-300x154.png\" alt=\"\" width=\"300\" height=\"154\" srcset=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2021\/04\/Brennan-2021-300x154.png 300w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2021\/04\/Brennan-2021-768x395.png 768w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2021\/04\/Brennan-2021-640x329.png 640w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2021\/04\/Brennan-2021.png 799w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Key message<\/strong><\/p>\n<p align=\"justify\">Hybrids had overall intermediate cold and heat tolerances compared to their progenitors, <em>Juglans cinerea<\/em> and <em>Juglans ailantifolia<\/em>. Differences in hybrids were small compared to <em>J. cinerea<\/em> though, indicating that when considering extreme temperature tolerances, hybrids might be used in some restoration circumstances. However, hybrids might exceed their cold tolerance in especially cold areas, such as <em>J. cinerea<\/em>\u2019s northern range limits.<\/p>\n<p><strong>Abstract<\/strong><\/p>\n<p align=\"justify\"><strong>Context<\/strong> Hybridization could incorporate traits for surviving detrimental global changes. <em>Juglans cinerea<\/em>, an endangered North American tree species, can hybridize with non-native <em>Juglans<\/em> <em>ailantifolia<\/em> Carr. Evidence indicates their hybrids could hold resistance to the fungal disease threatening <em>J. cinerea<\/em>. Consequently, the hybrids are being evaluated for restoration use, but to be effective, they must survive in <em>J. cinerea<\/em>\u2019s distribution. An ecophysiological evaluation could contribute to predicting potential hybrid utilization areas.<br \/>\n<strong>Aims<\/strong> To provide a relative comparison of the cold and heat tolerances among <em>J. cinerea<\/em> provenances and between <em>J. cinerea<\/em>, <em>J. ailantifolia<\/em>, and their hybrids.<br \/>\n<strong>Methods<\/strong> In the cold test, twigs were subjected to five freeze treatments and resulting damage was estimated using electrolyte leakage. In the heat test, leaflets were subjected to six hot water bath treatments and damage was estimated using chlorophyll fluorescence.<br \/>\n<strong>Results<\/strong> Within <em>J. cinerea<\/em>, trees from colder areas exhibited less cold damage than those from warmer areas. Differences in heat damage did not occur among hardiness zones. <em>Juglans cinerea<\/em> exhibited greatest cold tolerance, <em>J. ailantifolia<\/em> exhibited greatest heat tolerance, and hybrids were intermediate.<br \/>\n<strong>Conclusion<\/strong> Differences in the cold and heat tolerances of <em>J. cinerea<\/em> and its hybrids were overall minimal, although greater in cold tolerance.<\/p>\n<p><strong>Keywords<\/strong><br \/>\nChlorophyll fluorescence; Electrolyte leakage; Extreme temperature stress; <em>Juglans ailantifolia<\/em>; LT50<\/p>\n<div class='altmetric-embed' data-badge-type='donut' data-doi='10.1007\/s13595-021-01053-4'  style='float: right; ' ><\/div>\n<p><strong>Publication<\/strong><br \/>\nBrennan, A.N., Uscola, M., Joly, R.J. et al. Cold and heat tolerances of hybrids for restoration of the endangered <em>Juglans cinerea<\/em> L. Annals of Forest Science 78, 36 (2021). <a href=\"https:\/\/doi.org\/10.1007\/s13595-021-01053-4\">https:\/\/doi.org\/10.1007\/s13595-021-01053-4<\/a><\/p>\n<p><strong>For the read-only version of the full text:<\/strong><br \/>\n<a href=\"https:\/\/rdcu.be\/cindq\">https:\/\/rdcu.be\/cindq<\/a><\/p>\n<p><strong>Data availability<\/strong><br \/>\nThe datasets generated and analyzed during the current study are available from the Purdue University Research Repository: <a href=\"https:\/\/doi.org\/10.4231\/9SSA-3890\">https:\/\/doi.org\/10.4231\/9SSA-3890<\/a><\/p>\n<p><strong>Handling Editor<\/strong><br \/>\nErwin Dreyer<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Key message Hybrids had overall intermediate cold and heat tolerances compared to their progenitors, Juglans cinerea and Juglans ailantifolia. Differences in hybrids were small compared to J. cinerea though, indicating that when considering extreme temperature tolerances, hybrids might be used in some restoration circumstances. However, hybrids might exceed their cold tolerance in especially cold areas, [&hellip;]<\/p>\n","protected":false},"author":109,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,110,15],"tags":[],"class_list":["post-4846","post","type-post","status-publish","format-standard","hentry","category-article-type","category-data-in-repository","category-research-paper","cat-14-id","cat-110-id","cat-15-id"],"_links":{"self":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/4846","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/users\/109"}],"replies":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/comments?post=4846"}],"version-history":[{"count":0,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/4846\/revisions"}],"wp:attachment":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media?parent=4846"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/categories?post=4846"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/tags?post=4846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}