Entité de rattachement
Macroécologie et Systématique pour la Conservation (SysteMC)


yockteng [at] mnhn.fr

57 rue Cuvier


75005 Paris


Research interests

1. Evolution of plant-animal interactions

Yockteng illustration Passifloraceae

My research focuses in understanding the evolution of plant-animal interactions and its consequences in plant speciation, using molecular phylogenetic methods. I study these processes using as example the plants of the family Passifloraceae. The phylogenetic framework allows to reconstruct the evolution of plant traits associated to plant-animal interactions and to test the correlated evolution between plant and animal traits.

Yockteng illustration Passifloraceae Butterflies

The Passifloraceae plants present associations with different animal species. Species of genus Passiflora are well known for being the host plants of larvae of Butterflies of tribe Heliconiine. Species of Passiflora present diverse morphological and chemical traits that have probably evolved to defend them against caterpillars.

Hummingbird illustration © Rafael Yockteng

Flower morphology in plants of genus Passiflora seems to be adapted to a specific type of pollinator : bees, hummingbirds or bats. For instance, the presence of tubular flowers and the pollination by hummingbirds are probably correlated.

2. Floral developmental evolution in the order Zingiberales

Yockteng illustration order Zingiberales © MNHN

I am currently associate researcher at the Specht Lab at the University California in Berkeley.

I am implicated in a large project that studies the genetics of the floral development in the order Zingiberales. The main objective is to identify the majority of the genes that have played a role in the evolution of the diversity of floral forms in the order using RT-PCR, RNA-seq Illumina and in situ hybridization.

3. Specialisation and speciation in Microbotryum

Microbotryum violaceum © Michael Hood

I also collaborate with Tatiana Giraud to study the evolutionary mechanisms associated to the specialization and speciation of the fungus Microbotryum violaceum.

Microbotryum violaceum produces the anther smut disease in more than 90 plant species from the family Caryophyllaceae. In order to identify positively selected genes, we have created libraries of EST for four sibling species of this fungus Microbase.


  • 2005 - present : Associate Professor (Maître de conférences) - Muséum National d’Histoire Naturelle, Paris, France

  • 2010 - present : Associate Researcher - Specht lab - University of California, Berkeley

  • 2004 - 2005 : Post-doc - Lab. Écologie, Systématique et Évolution, Univ. Paris XI, Orsay, France.

  • 2002-2004 : Temporary assistant professor (ATER) - Lab. Écologie, Systématique et Évolution, Univ. Paris XI, Orsay, France

  • 1999-2003 : PhD- Lab. Écologie, Systématique et Évolution, Univ. Paris XI, Orsay, France

  • 1997-1999 : MS Biology - Universidad de los Andes, Bogota, Colombia

  • 1990-1996 : BS Biology - Universidad de los Andes, Bogotá, Colombia.


  • González-Orozco Carlos E., Porcel Mario, Rodriguez-Medina Caren & Yockteng Roxana, 2021Extreme climate refugia: a case study of wild relatives of cacao (Theobroma cacao) in Colombia. Biodiversity and Conservation , ,
    0960-3115, 1572-9710
  • André T., Sass C., Yockteng R., Wendt T., Palma-Silva C. & Specht C.D., 2021Deep genetic structure of a ground-herb along contrasting environments of seasonally dry understories in Amazonia and Cerrado as revealed from targeted genomic sequencing. Botanical Journal of the Linnean Society , ,
    0024-4074, 1095-8339
  • Ruiz-Avila Camilo, Yockteng Roxana, Caro-Quintero Alejandro, Bernal Morales Johan, Navarrete Andrea & Daza Giuliana, mai 2020Protocolo de extracción de ARN viral optimizado para SARS-Cov2. , , tex.referencetype: unknown
  • González-Orozco Carlos E., Galán Angela A. Sánchez, Ramos Pablo E. & Yockteng Roxana, 2020Exploring the diversity and distribution of crop wild relatives of cacao (Theobroma cacao L.) in Colombia. Genetic Resources and Crop Evolution vol. 67, n° 8, p. 2071-2085
    0925-9864, 1573-5109
  • Delgadillo-Durán Paola, Soto-Suárez Mauricio, Rodriguez-Polanco Leonora, Carrero-Gutierrez Martha, Torres-Rojas Esperanza & Yockteng Roxana, 2020A new method for the inoculation of Phytophthora palmivora (Butler) into cacao seedlings under greenhouse conditions. Plant Methods vol. 16, n° 1, p. 114
  • Rodriguez-Medina Caren, Escobar Sebastian, Caro-Quintero Alejandro & Yockteng Roxana, 2020A Delicious Story Made of Chocolate. Frontiers for Young Minds vol. 8, , p. 33
  • Osorio-Guarín Jaime A, Berdugo-Cely Jhon A, Coronado-Silva Roberto A, Baez Eliana, Jaimes Yeirme & Yockteng Roxana, 2020Genome-Wide Association Study Reveals Novel Candidate Genes Associated with Productivity and Disease Resistance to Moniliophthora spp. in Cacao ( Theobroma cacao L.). G3 GenesGenomesGenetics vol. 10, n° 5, p. 1713-1725
  • Rocha D. I., Batista D. S., Faleiro F. G., Rogalski M., Ribeiro L. M., Mercadante-Simões M. O., Yockteng R., Silva M. L. da, Soares W. S., Pinheiro M. V. M., Pacheco T. G., Lopes A. de S., Viccini L. F. & Otoni W. C., 2020« Passiflora spp. Passionfruit. » in Biotechnology of fruit and nut crops.. , , dir. CABI p. 381-408
  • Berdugo-Cely J., Valbuena R. I., Sánchez-Betancourt E., Barrero L. S. & Yockteng R., 2017Genetic diversity and association mapping in the Colombian Central Collection of Solanum tuberosum L. Andigenum group using SNPs markers. PLoS One vol. 12, n° 3, e0173039