Abstract Detail

Recent Topics Posters

Granados Mendoza, Carolina [1], Granados-Aguilar, Xochitl [2], Donadío, Sabina [3], Salazar, Gerardo [4], Flores-Cruz, María [5], Hagsater, Eric [6], Starr, Julian [7], Ibarra-Manríquez, Guillermo [8], Fragoso-Martinez, Itzi [9], Magallon, Susana [10].

Geographic structure in two highly diverse lineages of Tillandsia (Bromeliaceae).

The Neotropical genus Tillandsia (Bromeliaceae) is an excellent model system for macroevolutionary and biogeographic studies owing to its remarkable species diversity (ca. 740 spp.) and varied morphological and ecological adaptations to epiphytic and saxicolous habitats. Recent phylogenetic studies have greatly improved our knowledge about generic limits and infrageneric classification of Tillandsia. These studies have identified two clades of Tillandsia characterized by a distinct geographic distribution: (i) a North and Central American clade that includes species from subgenus Tillandsia; and (ii) a central South American clade containing species from subgenera Aerobia, Anoplophytum, Diaphoranthema, and Phytarrhiza. Our study aimed to determine the size, composition, and potential geographic structure of these two clades within the context of a global phylogeny of Tillandsioideae. With the addition of 100 newly sequenced species to previous studies to cover the now ca. 30% of the known species diversity of Tillandsia, our analyses found both clades to be strongly supported, and revealed that their species richness is much greater than previously known. Ancestral area estimation suggests that most of the diversification of the first of these clades took place in North and Central America, whereas within the second, most of the migratory events occurred from the Andes to the Brazilian shield.

Related Links:
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1 - Instituto de Biología, Universidad Nacional Autónoma de México, Departamento de Botánica, Apartado Postal 70-367, Coyoacán, Mexico City, 04510, Mexico
2 - Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autonom
3 - CONICET - Instituto de Botánica Darwinion, Labardén 200 - Casilla de Correo 22, San Isidro, B1642HYD, Argentina
4 - Universidad Nacional Autonoma De Mexico, INSTITUTO DE BIOLOGIA, Botanica, Apartado Postal 70-367, Mexico City, DIF, 04510, Mexico
5 - Universidad Autonoma Metropolitana Unidad Iztapalapa
6 - HERBARIO AMO, Montanas Calizas 490, Lomas De Chapultepec, Mexico, DIF, 11000, Mexico
7 - University of Ottawa, Department of Biology, Gendron Hall, Room 160, 30 Marie-Curie, Ottawa, Ontario, K1N 6N5, Canada
8 - Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Univers
9 - National Autonomous University of Mexico, Botany, Apartado Postal 70–367 Coyoacán, Mexico City, Mexico City, 045110, México
10 - Universidad Nacional Autonoma De Mexico, Instituto De Biologia, 3er Circuito De Ciudad Universitaria, Del. Coyoacan, A.p. 70-233, Mexico City, Mexico D.F., DIF, 04510, Mexico

Keywords:
none specified

Presentation Type: Recent Topics Poster
Session: P, Recent Topics Posters
Location: Grand Ballroom - Exhibit Hall/Mayo Civic Center
Date: Monday, July 23rd, 2018
Time: 5:30 PM
Number: PRT004
Abstract ID:1268
Candidate for Awards:None