Department of Ecology & Evolution






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Roberto Marquez
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Roberto Marquez  

Roberto Márquez


Department of Ecology & Evolution
University of Chicago
1101 E. 57th St. Z-409
Chicago, IL 60637

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Google Scholar
ORCID ID: 0000-0002-0644-3078

   
Profile  

My research focuses mainly on understanding the evolutionary processes and mechanisms that generate phenotypic and species diversity, mostly in poison frogs of the family Dendrobatidae. For my PhD, I am working to identify the evolutionary genetic and developmental processes through which multiple lineages of Phyllobates poison frogs have convergently evolved bright-yellow coloration, dangerously high toxicity, and larger sizes. I approach this question from multiple angles, including phylogenetics and phylogeography, develompent and gene expression, and genetic mapping and association studies. I also maintain an active research line on the systematics and taxonomy of Dendrobatid frogs, especially the genera Andinobates, Phyllobates, and Silverstoneia, in collaboration with researchers at Universidad de los Andes in Colombia. Apart from my work on poison frogs I have collaborated on projects aiming to describe or understand the processes that generate biodiversity, such as elucidating the relationship between bird migration and speciation in Tyrant Flycatchers, or delimiting the species of pathogenic fungi of the genus Histoplasma.

Education  

2013 – Present Ph.D. Ecology & Evolution. University of Chicago. Chicago, IL, USA.
Advisor: Dr. Marcus Kronforst

2012 – 2013 MSc. Biological Sciences - Biology. Universidad de Los Andes. Bogotá, Colombia.
Advisor: Dr. Adolfo Amézquita

2007 – 2011 BSc. Biology. Universidad de Los Andes. Bogotá, Colombia.
Advisor: Dr. Adolfo Amézquita

Appointments  

2015 Young Explorer. National Geographic Society.

2013 Research Assistant. Biological Sciences Department, Universidad de Los Andes. Bogotá, Colombia.

2012 Graduate Teaching Assistant. Biological Sciences Department Universidad de Los Andes, Bogotá, Colombia.

2010 – 2011 Undergraduate Teaching Assistant. Biological Sciences Department Universidad de Los Andes, Bogotá, Colombia.

Publications  

Márquez, R. Linderoth, T.P., Mejía-Vargas, D., Nielsen, R., Kronforst, M., & Amézquita, A. In Preparation. Divergence, gene flow, and the evolution of aposematic coloration in Phyllobatespoison frogs.

Márquez,  R., Ramírez-Castañeda, V, Amézquita, A. In Revision. Does batrachotoxin autoresistance co-evolve with toxicity in Phyllobates poison-dart frogs?

Rodgers, R.L*., Zhou, L*., Chu, C., Márquez, R., Corl, A., Linderoth, T.P., Freeborn, L., McManes, M., Xiong, Z., Zheng, J., Guo, C., Xun, X., Kronforst, M.R., Summers, K., Wu, Y., Yang, H., Richards-Zawacki, C.L., Zhang, G*., Nielsen, R*. 2018. Genomic takeover by transposable elements in the Strawberry poison frog. In Press. https://doi.org/10.1093/molbev/msy185

Casas-Cardona,  S., Márquez,  R., Vargas-Salinas,  F. 2018. Different colour morphs of the poison frog Andinobates bombetes (Dendrobatidae) are similarly effective visual predator deterrents. Ethology 128(4): 245-255. http://dx.doi.org/10.1111/eth.12729

Sepúlveda  V.E.*,  Márquez  R.*,  Turissini,  D.,  Goldman,  W.,  Matute,  D.R. 2017. Genome  sequences  reveal  cryptic  speciation  in  the  human  pathogen Histoplasma capsulatum. Mbio 8:e01339-17. https://doi.org/10.1128/mBio.01339-17

Márquez, R.*, Mejía-Vargas D.*, Palacios-Rodríguez, P., Ramírez-Castañeda, V., Amézquita, A. 2017. A new species of Andinobates (Anura: Dendrobatidae) from the Urabá region of Colombia. Zootaxa 4290 (3): 531-546. http://dx.doi.org/10.11646/zootaxa.4290.3.7

Salazar, E.N., Márquez, R., Chaves-Portilla, G., Dorado-Correa, A.M., Amézquita, A. 2016. Supatá Golden Frog. Andinobates supatae. In: Kahn, T.R., La Marca, E., Lötters, S., Brown, J.L., Twomey, E., Amézquita, A. (Eds.). Aposematic Poison Frogs (Dendrobatidae) of the Andean Countries: Bolivia, Colombia, Ecuador, Perú and Venezuela. Conservation International Tropical Field Guide Series. Bogotá.

Amézquita, A., Márquez, R., Medina, R., Mejía-Vargas, D., Kahn, T.R., Suárez, G., Mazariegos, L. 2013. A new species of Andean poison frog, Andinobates (Anura: Dendrobatidae), from the northwestern Andes of Colombia. Zootaxa 3620 (1): 163–178. http://dx.doi.org/10.11646/zootaxa.3620.1.8

Acevedo, A.A. Wake, D.B., Márquez, R., Silva, K., Franco, R., Amézquita, A. 2013. Two new species of Salamander, genus Bolitoglossa (Amphibia: Plethodontidae), from eastern Colombia. Zootaxa 3609 (1): 069–084. http://dx.doi.org/10.11646/zootaxa.3609.1.5

Márquez, R., Corredor, G., Galvis, C., Góez, D., Amézquita, A. 2012. Range extension of the critically endangered true poison-dart frog, Phyllobates terribilis (Anura: Dendrobatidae), in western Colombia. Acta Herpetologica 7(2): 341-345. http://dx.doi.org/10.13128/Acta_Herpetol-11387

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