Advanced search
Start date

The importance of integrating morphological and molecular evidence into phylogenetic analyses of the frog Family Craugastoridae (Anura: Brachycephaloidea)

Grant number: 16/25070-0
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): March 01, 2017
Effective date (End): January 31, 2018
Field of knowledge:Biological Sciences - Zoology
Principal Investigator:Taran Grant
Grantee:Jhon Jairo Ospina Sarria
Supervisor abroad: Rafe Brown
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Local de pesquisa : University of Kansas, United States  
Associated to the scholarship:14/03585-2 - Phylogenetic analysis of direct-developing frogs (Anura, Terrarana, Craugastoridae), BP.DR


A major recent trend in systematics is the re-integration of morphological data into total evidence analysis. Phenomic data (e.g., data from morphology, behavior, ontogeny, etc.) provide a richly independent source of phylogenetic evidence and important framework to "testing" molecular hypotheses, allowing all evidence to interact simultaneously to identify the hypothesis that bestexplains all the evidence. The total evidence analysis is becoming increasingly popular, whichhas opened new frontiers in evolutionary biology. Few studies have explored the effect ofincorporating phenotypic and larger DNA sequence datasets into total evidence analyses.However, those that have done so have found that even a comparatively small phenomic datasetcan have disproportionately large impacts on the results. For example, preliminary analyses ofdata acquired during my doctoral research on the superfamily Brachycephaloidea revealed astrong impact on the results, with all three currently accepted families, which were erected solely on the basis of molecular data, being monophyletic in the molecular-only analysis, but only one of them being monophyletic when morphology was also included. Given the demonstrated importance of morphological characters in testing the phylogenetic relationships of this group, I propose to visit the herpetological collection at the Natural History Museum of The University of Kansas (KU), the largest collection of Brachycephaloidea in the world, to score morphological characters Brachycephaloidea with emphasis on Craugastoridae. The resulting data will beincluded in my dissertation in a new total evidence analysis under the parsimony and maximumlikelihood optimality criteria, which will provide insights into the relative importance ofphenomic data in model-based and non-model-based approaches. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
OSPINA-SARRIA, JHON JAIRO; DUELLMAN, WILLIAM E. Two New Species of Pristimantis (Amphibia: Anura: Strabomantidae) from Southwestern Colombia. Herpetologica, v. 75, n. 1, p. 85-95, MAR 2019. Web of Science Citations: 0.
JAIRO OSPINA-SARRIA, JHON; CABRA-GARCIA, JIMMY. Parsimony analysis of unaligned sequence data: some clarifications. CLADISTICS, v. 34, n. 5, p. 574-577, OCT 2018. Web of Science Citations: 0.
RADA, MARCO; OSPINA-SARRIA, JHON JAIRO; GUAYASAMIN, JUAN M. A Taxonomic Review of Tan-Brown Glassfrogs (Anura: Centrolenidae), with the Description of a New Species from Southwestern Colombia. South American Journal of Herpetology, v. 12, n. 2, p. 136-156, AUG 2017. Web of Science Citations: 2.

Please report errors in scientific publications list by writing to: