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Thursday, November 3, 2022 between 5:00 PM and 6:00 PM
Friday, November 4, 2022 between 5:00 PM and 6:00 PM
Session A Poster Set-up and Dismantle
Session A Posters set up:
Thursday, November 3, 2022 between 8:00 AM and 10:30 AM
Session A Posters dismantle:
Friday, November 4, 2022 after 6:00 PM
Session B Poster Set-up and Dismantle
Session B Posters set up:
Thursday, November 3, 2022 between 8:00 AM and 10:30 AM
Session B Posters dismantle:
Friday, November 4, 2022 after 6:00 PM
Virtual Platform Only
Virtual: Uncovering the biogeographic history of the Neotropical Tillandsia subgenus Tillandsia
COSI: la
  • Sandra I. Vera Paz, Instituto de Biología- UNAM, Mexico
  • Daniel David Díaz Contreras Díaz, Instituto de Biología- UNAM, Mexico
  • Matthias Jost, Institut für Botanik, Technische Universität Dresden, Dresden, Germany., Germany
  • Rebeca Hernández Gutierrez, Instituto de Biología- UNAM, Mexico
  • Luis Antonio Sánchez Gonzáles, Museo de Zoología Alfonso L. Herrera, Departamento de Biología Evolutiva, Facultad de Ciencias, UNAM, Mexico
  • Susana Magallón, Instituto de Biología- UNAM, Mexico
  • Stefan Wanke, Institut für Botanik, Technische Universität Dresden, Dresden, Germany., Germany
  • Claudia Montes Azcué, Instituto de Biología- UNAM, Mexico
  • Andrés J. Rossado, Laboratorio de Sistemática de Plantas Vasculares, Facultad de Ciencias, Universidad de la República., Uruguay
  • Carolina Granados Mendoza, Instituto de Biología- UNAM, Mexico


Presentation Overview: Show

Tillandsia is the most diverse genus of the pineapple family (Bromeliaceae, Poales), with 768 Nearctic and Neotropical species distributed from Southern USA to Argentina and Chile. Species of Tillandsia are known by their notable morphological and ecological adaptations to the epiphytic, epiphytic, and saxicolous habitats, such as specialized roots for anchoring, reduced stems with leaves in compact rosettes, modified trichomes for water and nutrient uptake, and the Crassulacean Acid Metabolism. Recent phylogenetic studies have greatly improved our knowledge about the infrageneric classification of Tillandsia. Among the seven currently recognized subgenera for Tillandsia, subgenus Tillandsia is the most diverse (270 spp.) and has its center of diversity in Mexico and Central America. Previous studies suggested that Bromeliaceae arose in the Guyana shield, later dispersing to the rest of the Neotropics. Tillandsia subgenus Tillandsia is thought to have dispersed from the Andes to Central and North America. However, a lack of phylogenetic resolution of previous studies using few Sanger-sequenced markers, have hindered the reconstruction of this dispersal route in detail. The present work uses complete plastomes assembled from Hyb-Seq data of a representative sampling of subgenus Tillandsia and selected outgroups from the Tillandsioideae. We generated a phylogeny which we used to perform ancestral-area reconstruction analyses. The additional phylogenetic resolution provided by the analysis of full plastomes allowed for a more robust reconstruction of the biogeographic history of the subgenus at a fine scale.