{"id":2295,"date":"2012-01-13T18:51:56","date_gmt":"2012-01-13T17:51:56","guid":{"rendered":"http:\/\/www.art.listephoenix.com\/?page_id=637"},"modified":"2025-04-03T10:30:55","modified_gmt":"2025-04-03T09:30:55","slug":"afrique-orientale","status":"publish","type":"page","link":"http:\/\/www.listephoenix.com\/?page_id=2295","title":{"rendered":"Afrique orientale"},"content":{"rendered":"\n

Citer cet article\u00a0: CRP 2012. Description et caract\u00e9risation des palmiers du genre Phoenix: biog\u00e9ographie historique des palmiers subtropicaux.\u00a0<\/strong>R\u00e9dacteur Robert CASTELLANA.\u00a0Statut: compte-rendu de recherches. Edition en ligne.\u00a0<\/strong>\u00a0Lien<\/a><\/strong><\/p>\n\n\n

HOME <\/strong><\/a>\/ MEDITERRANEAN<\/a>\u00a0<\/strong><\/span> \/ <\/strong><\/span><\/span>MIDDLE-EAST<\/a>\u00a0<\/strong><\/span><\/span><\/span> \/ <\/strong>RED-SEA<\/a>\u00a0<\/strong><\/span> \/ <\/strong>WEST-AFRICA<\/a>\u00a0<\/strong><\/span><\/span><\/span><\/div>\n
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Les palmeraies naturelles de Djibouti, Ethiopie, Erythr\u00e9e, Soudan, Somalie, Y\u00e9men et Oman. <\/span><\/span><\/strong>Cette vaste r\u00e9gion, qui borde la p\u00e9ninsule arabique, est particuli\u00e8rement int\u00e9ressante en raison de la coexistence de plusieurs esp\u00e8ces du genre Phoenix<\/em>. A Djibouti, o\u00f9 nous avons effectu\u00e9 une mission de collecte en janvier 2011 en collaboration avec le Centre d\u2019Etude et de Recherche de Djibouti (CERD), nous avons pu observer une situation de sympatrie entre Phoenix reclinata et P. caespitosa. Bien que la p\u00e9riode de floraison des deux esp\u00e8ces soit sensiblement d\u00e9cal\u00e9e, elles s\u2019hybrident manifestement. La dynamique des flux de g\u00e8nes entre les deux esp\u00e8ces est en cours d\u2019\u00e9tude \u00e0 l\u2019aide de marqueurs microsatellites. Cet exemple est particuli\u00e8rement int\u00e9ressant pour comprendre l\u2019\u00e9volution du genre Phoenix, car il montre que des esp\u00e8ces peuvent s\u2019hybrider \u00e0 l\u2019\u00e9tat naturel, et pas seulement \u00e0 la suite d\u2019une mise en contact par l\u2019entremise de l\u2019homme.<\/span><\/span><\/div>\n
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\"Afrique-map-Mer-Rouge\"<\/div>\n
SITUATION. <\/strong><\/span><\/span>Phoenix reclinata et P. caespitosa ont \u00e9t\u00e9 syst\u00e9matiquement trouv\u00e9s en association \u00e9troite \u00e0 Djibouti, sur tous les sites visit\u00e9s de la r\u00e9gion de Bankoual\u00e9, dans l\u2019int\u00e9rieur du pays, vers 600-900 m d\u2019altitude. Les hybrides spontan\u00e9s Phoenix reclinata X caespitosa pr\u00e9sentent un r\u00e9el int\u00e9r\u00eat ornemental, alliant une taille mod\u00e9r\u00e9e avec un feuillage fin et gracieux, l\u00e9g\u00e8rement glaucescent. Certains sont cultiv\u00e9s en bordure de jardins mara\u00eechers et de vergers de manguiers \u00e0 Bankoual\u00e9. A Oman, nous cherchons \u00e0 caract\u00e9riser g\u00e9n\u00e9tiquement des vari\u00e9t\u00e9s de dattier qui proviennent d\u2019hybridation avec Phoenix sylvestris. Il semble que celles-ci r\u00e9sultent de l\u2019importation de pollen de Phoenix sylvestris d\u2019Inde. <\/span><\/span><\/div>\n
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DIVERSITE. <\/strong><\/span><\/span>Phoenix reclinata, et P. caespitosa \u00e0 Djibouti, associ\u00e9s aux deux autres esp\u00e8ces de palmiers de la flore djiboutienne, Hyphaene thebaica et Livistona carinensis. Phoenix dactylifera, \u00e0 Oman. <\/span><\/span><\/div>\n
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BIBLIOGRAPHIE<\/strong><\/span><\/span><\/div>\n
ORWA C, MUTUA A , KINDT R , JAMNADASS R, SIMONS A., 2009<\/strong>. Agroforestree Database. A tree reference and selection guide<\/span>. Link\u00a0: http:\/\/www.worldagroforestry.org\/<\/a> <\/span><\/span><\/div>\n
KINNAIRD M.F. 1992<\/strong>. Competition for a forest palm. Use of Phoenix reclinata by human and non-human primates<\/span>. In: Conservation Biology, 6 (1), 101-107. Link\u00a0: http:\/\/primate.rutgers.edu\/<\/a><\/span><\/span><\/div>\n
AOUALEH M.A., 1990<\/strong>, Les caract\u00e9ristiques de la phoeniciculture djiboutienne et ses perspectives de d\u00e9veloppement<\/span>. In: <\/span><\/span>CIHEAM-IAMM, <\/span><\/span>Montpellier (FRA) 1990 n. 11, p. 55-57. Link\u00a0: http:\/\/ressources.ciheam.org\/<\/a> <\/span><\/span><\/div>\n

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Citer cet article\u00a0: CRP 2012. Description et caract\u00e9risation des palmiers du genre Phoenix: biog\u00e9ographie historique des palmiers subtropicaux.\u00a0R\u00e9dacteur Robert CASTELLANA.\u00a0Statut: compte-rendu de recherches. Edition en…<\/p>\n

Continue readingAfrique orientale<\/span><\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"parent":2276,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2295","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"http:\/\/www.listephoenix.com\/index.php?rest_route=\/wp\/v2\/pages\/2295","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.listephoenix.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.listephoenix.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.listephoenix.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.listephoenix.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2295"}],"version-history":[{"count":16,"href":"http:\/\/www.listephoenix.com\/index.php?rest_route=\/wp\/v2\/pages\/2295\/revisions"}],"predecessor-version":[{"id":13044,"href":"http:\/\/www.listephoenix.com\/index.php?rest_route=\/wp\/v2\/pages\/2295\/revisions\/13044"}],"up":[{"embeddable":true,"href":"http:\/\/www.listephoenix.com\/index.php?rest_route=\/wp\/v2\/pages\/2276"}],"wp:attachment":[{"href":"http:\/\/www.listephoenix.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2295"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}