Cros Joëlle auteur aut IRD Combes Marie-Christine auteur aut IRD Trouslot Pierre auteur aut IRD Anthony François auteur aut IRD Hamon Serge auteur aut IRD Charrier A. auteur aut IRD Lashermes Philippe auteur aut IRD text journalArticle eng text/pdf reformatted digital access The trnL-trnF intergenic spacer of cpDNA has been sequenced from 38 tree samples representing 23 Coffea taxa and the related genus Psilanthus. These sequences were used for phylogenetic reconstruction using parsimony analyses. The results suggest a radial model of speciation and a recent origin in Africa for the genus Coffea. Phylogenetic relationships inferred from the cpDNA analysis suggest several major clades, which present a strong geographical correspondence (i.e., west Africa, central Africa, east Africa, and Madagascar). The overall results agree well with the phylogeny previously inferred from nuclear genome data. However, several inconsistencies are observed among taxa endemic to west Africa, suggesting the occurrence of introgressive hybridization. Evidence is also obtained for the genetic origin of the allotetraploid species C. arabica. (Résumé d'auteur) specialized AMELIORATION DES PLANTES RESSOURCES VEGETALES SPONTANEES PHYLOGENIE ADN CHLOROPLASTE 076AMEPLA03 9 1 109-117 1998 1055-7903 https://www.documentation.ird.fr/hor/fdi:010014683 1055-7903 [F B010014683] https://www.documentation.ird.fr/hor/fdi:010014683 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_7/b_fdi_51-52/010014683.pdf IRD - Base Horizon / Pleins textes 1998-08-10 2018-06-15 fdi:010014683 fre