{"id":4463,"date":"2020-09-29T11:35:24","date_gmt":"2020-09-29T09:35:24","guid":{"rendered":"https:\/\/ist.blogs.inrae.fr\/afs\/?p=4463"},"modified":"2020-09-29T11:35:24","modified_gmt":"2020-09-29T09:35:24","slug":"first-evidence-for-allotriploid-hybrids-between-juniperus-thurifera-and-j-sabina-in-a-sympatric-area-in-the-french-alps","status":"publish","type":"post","link":"https:\/\/ist.blogs.inrae.fr\/afs\/2020\/09\/29\/first-evidence-for-allotriploid-hybrids-between-juniperus-thurifera-and-j-sabina-in-a-sympatric-area-in-the-french-alps\/","title":{"rendered":"First evidence for allotriploid hybrids between Juniperus thurifera and J. sabina in a sympatric area in the French Alps"},"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\/2020\/09\/Farhat2020.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4468 alignleft\" src=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/09\/Farhat2020-300x183.png\" alt=\"\" width=\"300\" height=\"183\" srcset=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/09\/Farhat2020-300x183.png 300w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/09\/Farhat2020-768x469.png 768w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/09\/Farhat2020-640x391.png 640w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/09\/Farhat2020.png 983w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Key message<\/strong><br \/>\nDiscovery of the first case of allotriploid juniper in a wild population in the French Alps where the parental species occurs in sympatry.<\/p>\n<p><strong>Abstract<\/strong><\/p>\n<p align=\"justify\"><strong>Context<\/strong> Interspecific hybridization and polyploidy are important evolutionary phenomena in vascular plants. Natural hybridization between species living in sympatry can sometimes occur. Less frequent are successful hybridizations between species having different ploidy levels. At Saint Cr\u00e9pin location (French Alps), where sympatry between the tetraploid <em>Juniperus thurifera<\/em> and the diploid <em>Juniperus sabina<\/em> occurs, three individuals with an atypical morphology have been observed.<br \/>\n<strong>Aims<\/strong> Prospect interspecific hybrids and interspecific genetic introgression occurrence.<br \/>\n<strong>Methods<\/strong> Flow cytometry was employed to screen ploidy levels. Four chloroplast markers, nrDNA (ITS), and AFLP markers were used to unravel hybridization and potential introgression events. Variability of pollen size and morphology was assessed to have a first insight on the regularity of microsporogenesis in hybrids.<br \/>\n<strong>Results<\/strong> The three putative hybrids were shown to be triploids. Molecular data demonstrated that these individuals were hybrids originated from a cross between <em>J. sabina<\/em> and <em>J. thurifera<\/em> and suggested that a backcross at least with <em>J. thurifera<\/em> is possible. Male triploid hybrids produced heterogeneous pollen and displayed evidence of irregularity in the microsporogenesis.<br \/>\n<strong>Conclusion<\/strong> This study sheds light on a rare case of hybridization in a natural sympatric population of two <em>Juniperus<\/em> species with different ploidy levels. This mechanism might have been an important driver for the evolution and diversification of this coniferous genus.<\/p>\n<p><strong>Keywords<\/strong><br \/>\n<em>Juniperus<\/em>; Polyploidy; Interspecific hybridization; Pollen abnormality; AFLP; Saint Cr\u00e9pin<\/p>\n<div class='altmetric-embed' data-badge-type='donut' data-doi='10.1007\/s13595-020-00969-7'  style='float: right; ' ><\/div>\n<p><strong>Publication<\/strong><br \/>\nFarhat, P., Takvorian, N., Avramidou, M. et al. First evidence for allotriploid hybrids between <em>Juniperus thurifera<\/em> and<em> J. sabina<\/em> in a sympatric area in the French Alps. Annals of Forest Science 77, 93 (2020). <a href=\"https:\/\/doi.org\/10.1007\/s13595-020-00969-7\">https:\/\/doi.org\/10.1007\/s13595-020-00969-7<\/a><\/p>\n<p><strong>For the read-only version of the full text:<\/strong><br \/>\n<a href=\"https:\/\/rdcu.be\/b7Qgg\">https:\/\/rdcu.be\/b7Qgg<\/a><\/p>\n<p><strong>Data availability<\/strong><br \/>\nThe sequence data generated during the current study are available on NCBI genebank and accession numbers are available in Table 5. The AFLP data are available on the Dryad platform in Farhat et al. (2020) <a href=\"https:\/\/doi.org\/10.5061\/dryad.h44j0zpgk\">https:\/\/doi.org\/10.5061\/dryad.h44j0zpgk<\/a>.<\/p>\n<p><strong>Handling Editor<\/strong><br \/>\nBruno Fady<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Key message Discovery of the first case of allotriploid juniper in a wild population in the French Alps where the parental species occurs in sympatry. Abstract Context Interspecific hybridization and polyploidy are important evolutionary phenomena in vascular plants. Natural hybridization between species living in sympatry can sometimes occur. Less frequent are successful hybridizations between species [&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-4463","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\/4463","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=4463"}],"version-history":[{"count":0,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/4463\/revisions"}],"wp:attachment":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media?parent=4463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/categories?post=4463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/tags?post=4463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}