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Abstract Detail


Treiber, Erin [1], Torres, Maria Fernanda [2], Zalamea, Paul [3], Madriñán, Santiago [4], Weiblen, George [5].

Phylogeny of Cecropia (Cecropieae: Urticaceae) inferred from restriction-site associated DNA sequences.

Ant-plant mutualisms are especially common in the tropics and are popular for ecological studies of mutualism. However, investigating the evolution of tropical ant-plant mutualisms requires a phylogenetic framework. A common ant-plant mutualism in the Neotropics involves the genus Cecropia, a group of fast growing pioneer trees that are important in forest regeneration. Our study aimed to infer relationships in approximately half the genus using restriction site associated DNA (RAD) sequencing. RAD sequence data resolved and supported species level relationships beyond what could be inferred from direct sequencing. Our results support a deeply divergent non-myrmecophytic clade that included C. sciadophylla and African Musanga. Evidence from geographically widespread and morphologically heter?o?gen?e?ous C. obtusifolia and C. angustifolia suggests that current synonymy lumps together genetically dissimilar lineages. More extensive genetic study is needed to refine species concepts in Cecropia.

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1 - University of Minnesota, Entomology, U of M Bee Research Facility, 1634 Gortner Ave., Saint Paul, MN, 55108, USA
2 - University of Edinburgh, Institute of Evolutionary Biology, Ashworth Laboratories, West Mains Road, Edinburgh, EH9, 3JT, UK
3 - Smithsonian Tropical Research Institute, Barro Colorado Island, Panama, Panama
4 - Universidad de los Andes, Ciencias Biológicas, Cra. 1 # 18a-12, Calle 5A#25A-67 Apto. 402, Bogotá, Bogotá DC., 111711, Colombia
5 - Plant & Microbial Biology, 140 Gortner Laboratory , 1479 Gortner Avenue, St. Paul, MN, 55108, United States


Presentation Type: Oral Paper
Session: 37, Systematics III--Monocots 2 to Caryophs
Location: 111/Mayo Civic Center
Date: Wednesday, July 25th, 2018
Time: 9:00 AM
Number: 37005
Abstract ID:551
Candidate for Awards:None

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