Poncet Valérie auteur aut IRD Birnbaum P. auteur aut IRD Burtet-Sarramegna V. auteur aut IRD Kochko Alexandre de auteur aut IRD Fogliani B. auteur aut IRD Gâteblé G. auteur aut IRD Isnard Sandrine auteur aut IRD Jaffré Tanguy auteur aut IRD Job D. auteur aut IRD Munoz F. auteur aut IRD Munzinger Jérôme auteur aut IRD Scutt C.P. auteur aut IRD Tournebize R. auteur aut IRD Trueba S. auteur aut IRD Pillon Yohan auteur aut IRD text journalArticle eng text/pdf born digital access Amborella trichopoda (Amborellaceae) is a shrub endemic to New Caledonia in the Southwest Pacific region. This plant suddenly became famous when molecular phylogenetic studies revealed that this sole species is likely the sister taxon to all other angiosperms. It has thus been a prime research model for reconstructing plant evolution and gaining insight into what the earliest angiosperms looked like. A wealth of studies on Amborella have now shed considerable light on its genome, morphology, anatomy, physiology, development, and architecture - this research is reviewed in this article. While Amborella likely retained some ancestral traits, critical character reconstructions have also highlighted some derived and sometimes unique characters in this species. The history of Amborella is also tied to the South Pacific archipelago of New Caledonia, its homeland. It was part of the New Caledonian biogeography puzzle and its genetic history shed light on the dynamics of its ecosystem, the rainforest understorey. Amborella is now cultivated in botanical gardens and has been the focus of some conservation measures that will also benefit other species in this biodiversity hotspot. specialized NOUVELLE CALEDONIE 076BOTA 082ECOSYS 2 3 41 2019 2639-3832 https://www.documentation.ird.fr/hor/fdi:010076886 10.1002/9781119312994.apr0689 2639-3832 [F B010076886] https://www.documentation.ird.fr/hor/fdi:010076886 https://www.documentation.ird.fr/intranet/publi/depot/2019-11-08/010076886.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2019-10-31 2025-02-24 fdi:010076886 fre