Marine Laboratory
Island Evolution Lab
Marine Laboratory
Island Evolution Lab
The Island Evolution Lab at the UOG Marine Lab is a group of researchers and students interested in basic and applied evolutionary question in island settings. We are using genetic and genomic approaches (RAD-Seq, RNA-Seq and Genome sequencing) in combination with field work, observations, collections, museums, specimens and experimental manipulations to address original questions in population genetics, phylogenetics, phylogeography, molecular ecology and genomics.
The Island Evolution Lab is partially funded by the NSF EPSCoR Guam Ecosystems Collaboratorium and NOAA's Coral Reef Conservation Program.
We are always looking for graduate and undergraduate students who are interested and passionate about evolution, genomics and population genetics!
Please contact us islandevolutionlab@gmail.com
Follow us on Twitter @Island_Evo_Lab (e.g. here in the column on the side -->
And on Instagram @islandevolutionlab (e.g. below)
Our instagram feed:
A special feature about our lab on Guam's local TV station Kuam TV in April 2019 (also on youtube)
Office Location: 
Karim D. Primov
Tumon, GU
Research: Population Genomics of Porites lobata
Current position: Graduate Research Assistant and MS Candidate in the UOG Graduate Biology Program
Dareon Rios
Tumon, GU
Research: Population Genomics of Acropora corals
Current position: Graduate Research Assistant and MS Candidate in the UOG Graduate Biology Program
Arthur Perez
-, GU
Research: Porites phylogenomics
Current position: Graduate Student Assistant in the UOG Graduate Biology Program
Criminalist in the Guam Police Crime Lab
Jessica Fernandez
Yigo, GU
Research: Porites barcoding and phylogenetics
Current position: Undergraduate Intern;
Junior at University of Guam, Biology Program
Kireon Rios
Chalan Pago, GU
Research: Porites barcoding and phylogenetics
Current position: Undergraduate Intern;
Sophomore at University of Guam, Biology Program
CONGRATULATIONS Kireon for receiving the Louis Stokes Alliances for Minority Participation (LSAMP) stipend for his research on Porites barcoding and phylogenetics.
Christian Binuya
Yigo, GU
Research: Pocillopora barcoding and phylogenetics
Current position: Undergraduate Intern;
Sophomore at University of Guam, double majoring in chemistry and biology under the Chemistry Program
LAB ALUMNI:
Leya Wang
Tumon, GU
Advisor: Dr. David Combosch
Research: Coral reproduction
Bio: High School Intern (2018-2019); Senior at St. Johns High School, Tumon, Guam
Andrea Fuentes
University Park, IL
Advisor: Dr. David Combosch
Research: Porites Coral Phylogenetics
Bio: Visiting Undergraduate Student (2018) and back then Senior at Governors State University, IL
Main Team Collaborations:
- Gonzalo Giribet (Harvard University, Cambridge)
- Ana Riesgo (Museum of Natural History, London)
- Rüdiger Bieler (Field Museum, Chicago)
- Miquel Arnedo (University of Barcelona)
- Sarah Lemer (University of Guam)
- Neil Landman (American Museum of Natural History, NY)
- Bernardo Lemos (Harvard University, Boston)
- Rich Aronson (Florida Institute of Technology)
- Lauren Toth (US Geological Survey)
- Martin Schwentner (Natural History Museum, Vienna)
- Valerie Paul (Smithsonian National Museum of Natural History)
- Crawford Drury (University of Hawaii)
- Zac Forsman (University of Hawaii)
- Dan Barshis (Old Dominion University, Norfolk)
Coral Population Genomics
We are exploring the genetic connectivity, diversity and structure of multiple coral species around Guam and throughout Micronesia using an in-house RAD-Seq approach.
This is a major focus of our lab and both Dareon and Karim MS thesis are focussing on coral population genomics for their thesis research (see team).
Coral Phylogenomics & Phylogenetics
The main phylogenetic relationships among corals have been highly controversial for years. Recently genome-sclae datasets have started to clarify many of these important relationships. We are currently assembling on one of the largest genomic dataset to study the deep relationships in the coral tree of life.
Coral Bleaching Resistance
We are using experiments to induce coral bleaching in aquaria experiment to characterize the molecular processes that allow corals to survive and adapt to stressful environmental conditions. Most of these projects are conducted in collaboration with the Lemer Lab.
Nautilus Phylogeography
The Nautilus is one of the most iconic marine invertebrates and an important model system for evolutionary biologist and paleontologists, among others. We are using genomic tools to analyze the evolution and phylogeography of Nautilus across the species distribution range.
Coral Reproduction
Coral reproduction is of major interest, not only to improve our understanding of the basic biology of reef corals but also for their management and restoration. We are studying the reproductive characteristics of several coral species, using aquarium experiments and genetic tools.
David's Google Scholar Profile
Please contact us for pdf copies or download from researchgate or sci-hub.
Select Publications:
2020
- Schwentner M., G. Giribet, D.J. Combosch, & B.V. Timms 2020 Genetic Differentiation in Mountain-Dwelling Clam Shrimp, Paralimnadia (Crustacea: Branchiopoda: Spinicaudata), in Eastern Australia. Invertebrate Systematics 34 (1): 88–100. doi:10.1071/IS19027.
2019
- Walker N.S., R. Fernández, J.M. Sneed, V.J. Paul, G. Giribet, & D.J. Combosch 2019 Differential Gene Expression During Substrate Probing in Larvae of the Caribbean Coral Porites astreoides. Molecular Ecology 28(22): 4899-4913, DOI:10.1111/mec.15265.
- Leiva C., S. Taboada, N.J. Kenny, D. Combosch, G. Giribet, T. Jombart, A. Riesgo (2019) Population substructure and signals of divergent adaptive selection despite admixture in the sponge Dendrilla antarctica from shallow waters surrounding the Antarctic Peninsula. Molecular Ecology 28(13): 3151-3170, DOI: 10.1111/mec.15135
- Laumer C., R. Fernández, S. Lemer, D. Combosch, K. Kocot, A. Riesgo, S. Andrade, W. Sterrer, M. Sørensen, G. Giribet (2019) Revisiting metazoan phylogeny with genomic sampling of all phyla. Proceedings of the Royal Society B. 286(1906): 20190831, DOI: 10.1098/rspb.2019.0831
2017
- Combosch* D.J., S. Lemer*, P.D. Ward, N.H. Landman & G. Giribet 2017 Genomic signatures of evolution in Nautilus–an endangered living fossil. Molecular Ecology 26(21): 5923–5938 *Shared first author
- Schwentner M., D.J. Combosch, J.P. Nelson & G. Giribet 2017 A Phylogenomic Solution to the Origin of Insects by Resolving Crustacean-Hexapod Relationships. Current Biology 27(12): 1818-1824
- Combosch D.J., T.M. Collins, E.A. Glover, D.L. Graf, E.M. Harper, J.M. Healy, G.Y. Kawauchi, S. Lemer, E. McIntyre, E.E. Strong, J.D. Taylor, J.D. Zardus, P.M. Mikkelsen, G. Giribet & R. Bieler 2017 A family-level Tree of Life for bivalves based on a Sanger-sequencing approach. Molecular Phylogenetics & Evolution 107: 191–208
2016
- Combosch D.J. & G. Giribet 2016 Clarifying phylogenetic relationships and the evolutionary history of the bivalve order Arcida (Mollusca: Bivalvia: Pteriomorphia). Molecular Phylogenetics & Evolution 94: 298-312
2015
- Combosch D.J. & S.V. Vollmer 2015 Trans-Pacific RAD-Seq population genomics confirms introgressive hybridization in Eastern Pacific Pocillopora corals. Molecular Phylogenetics & Evolution 88: 154-162
2013
- Combosch D.J. & S.V. Vollmer 2013 Mixed asexual and sexual reproduction in the Indo-Pacific reef coral Pocillopora damicornis. Ecology & Evolution 3(10): 3379-3387
2012
- Toth L.T., R.B. Aronson, S.V. Vollmer, J.W. Hobbs, D. Urrego, H. Cheng, I. Enochs, D.J. Combosch, R. van Woesik & I. Macintyre 2012 ENSO drove 2500-Year Collapse of Eastern Pacific Coral Reefs. Science 337(6090): 81-84
2011
- Combosch D.J. & S. Vollmer 2011 Population Genetics of an Ecosystem-Defining Reef Coral Pocillopora damicornis in the Tropical Eastern Pacific. PLoS ONE 6(8): e21200
2008
- Combosch D.J., H. Guzmán, H. Schuhmacher & S. Vollmer 2008 Interspecific Hybridization and Restricted Gene Flow in Tropical Eastern Pacific Pocillopora. Molecular Ecology 17: 1304-1312
Presentations
2019
- Asia Pacific Academy of Science, Education and Environmental Management (APASEEM), Garapan, Saipan (CNMI)
- Combosch D.J.: Population genomics of reef-building corals in the CNMI and Guam. -
Gordon Research Conference: Marine Molecular Ecology, Hong Kong
- Combosch D.J.: Population genomics of reef corals in Guam. -
5th Guam Coral Reef Symposium, Tumon (Guam)
- Rios D.* & D.J. Combosch: Population Genomics of Acropora pulchra in Guam.
- Rios K.**, D. Rios, K. Primov, J. Fernandez, A. Fuentes, D. Burdick & D.J. Combosch: Barcoding and phylogenetic analyses of reef-building Porites corals.
- Primov K.* & D.J. Combosch: The Population Genetic Structure of the reef-building coral Porites lobata on Guam. -
CISX – 10th Conference for Island Sustainability, Tumon (Guam)
- Rios D.* & D.J. Combosch: The Population Genetic Structure of Acropora pulchra in Guam.
- Primov K.* & D.J. Combosch: Population Genetic Structure of the reef-building coral Porites lobata on Guam.
2018
- University of Guam (Guam), POETS Seminar Series
- Combosch D.J.: Genomic signatures of evolution in Nautilus – an endangered living fossil. -
SACNAS - The National Diversity in STEM Conference, San Antonio, TX (USA)
- Fuentes A.** & D.J. Combosch: Resolving the Species Boundaries in the Porites Corals of Guam. -
Willi Henning Congress, Barcelona (Spain)
- Enguidanos A.*, D.J. Combosch, V. Tonzo, G. Giribet & M. Arnedo: Knocking on the trap-door: Unraveling the species boundaries and evolutionary history of western Mediterranean ctenizid trap-door spiders. -
Asia-Pacific Coral Reef Symposium, Cebu (Philippines)
- Combosch D.J., S. Lemer, R. Bieler & G. Giribet: A genome and transcriptome-based phylogeny of reef corals. -
4th Guam Coral Reef Symposium, Tumon (Guam)
- Combosch D.J., S. Lemer, R. Bieler & G. Giribet: A phylogenomic study of Scleractinian corals based on genome and transcriptome data. -
CISX – 9th Conference for Island Sustainability, Tumon (Guam)
- Primov K.* & D.J. Combosch: The Population Genetic Structure of Porites lobata on Guam. -
Connections, Collaborations and Innovations in the Pacific, UOG Annual Research Conference, Mangilao (Guam)
- Combosch D.J.: Connections, Collaborations and Innovations and the EPSCoR Guam Ecosystem Collaboratorium.
2017
- Hong Kong University (Hong Kong), Ecology and Biodiversity Seminar
- Combosch D.J. & S. Lemer: Evolutionary Genomics and the EPSCoR Guam Ecosystem Collaborative. - University of Guam (Guam), SECORE Coral Reproduction workshop
- Combosch D.J.: Population Genetics and Restoration. - International Society for Reef Studies European Meeting, Oxford (UK)
- Combosch D.J., S. Lemer, R. Bieler & G. Giribet: A genome and transcriptome based phylogenomic study of Scleractinian corals.
- Lemer S., D.J. Combosch & B. Lemos: Epigenetic modification and differential gene expression in Acropora digitifera during heat acclimation. - 10th World Sponge Conference, Galway (Ireland)
- Leiva C.*, S. Taboada, D.J. Combosch, G. Giribet & A. Riesgo: Genomic approach to the evolutionary history and population structure of Dendrilla antarctica Topsent, 1905 (Porifera, Demospongiae) from the shallow-water Southern Ocean. - XIIth Scientific Committee on Antarctic Research, Leuven (Belgium)
- Taboada S., C. Leiva, G. Giribet, D.J. Combosch, J. Junoy, J. Avila & A. Riesgo: Molecular connectivity in two congeneric Antarctic shallow-water hoplonemertean species with direct development using a traditional marker and SNPs
- Leiva C.*, S. Taboada, D.J. Combosch, G. Giribet & A. Riesgo: Population connectivity of Dendrilla antarctica Topsent, 1905 (Porifera, Demospongiae) from West Antarctica shallow bottoms using genome-wide SNPS obtained from RADSeq techniques.
2016
- 12th International Coral Reef Symposium, Honolulu, HI (USA)
- Combosch D.J., S. Lemer & G. Giribet: A phylogenomic backbone for Scleractinia. - Harvard University OEB Thesis Symposium, Cambridge, MA (USA)
- Walker N.*, G. Giribet & D.J. Combosch: Characterizing Differential Gene Expression in Probing Larvae of the Caribbean Coral Species Porites astreoides Lamarck, 1816.
2015
- Harvard Museum of Comparative Zoology (USA), MCZ Seminar Series
- Combosch D.J.: Population genomics of nautilids. - Gordon Research Conference: Ecological and Evolutionary Genomics, Biddeford, ME (USA);
- Combosch D.J., S. Lemer & G. Giribet: Population genomics of nautilids.
2012
- 12th International Coral Reef Symposium, Cairns (Australia)
- Combosch D.J. & S.V. Vollmer: Transpacific phylogenomic analysis of Pocillopora damicornis populations.
2010
- International Society for Reef Studies European Meeting, Wageningen (Netherlands)
- Combosch D.J. & S.V. Vollmer: Population genetics of an ecosystem-engineer - Pocillopora damicornis (Cnidaria, Scleractinia) in the Eastern Pacific.
2009
- Ruhr-University Bochum (Germany), Biodiversity Colloquium
- Combosch D.J.: Molecular Ecology of Tropical Eastern Pacific Corals. - Western Society of Naturalists, Monterey, CA (USA)
- Combosch D.J. & S.V. Vollmer: Population genetics of an ecosystem-defining reef builder - Pocillopora damicornis in the Tropical Eastern Pacific.
2008
- 11th International Coral Reef Symposium, Fort Lauderdale, FL (USA)
- Combosch D.J., H. Schuhmacher, H. Guzman & S.V. Vollmer: Local Interspecific Hybridization and Restricted Transpacific Gene Flow in Tropical Eastern Pacific Pocillopora. - 37th Benthic Ecology Meeting, Providence, RI (USA)
- Combosch D.J., H. Schuhmacher, H. Guzman & S.V. Vollmer: Interspecific Hybridization in Eastern Pacific Pocillopora (Scleractinia).
2006
- International Society for Reef Studies European Meeting, Bremen (Germany)
- Combosch D.J., H. Schuhmacher & S.V. Vollmer: Unexpected variation in the Calmodulin gene of corals.
*Student presenter; **Undergraduate presenter
Teaching:
- Evolutionary Biology (BI/EV525)
- Population Genetics Seminar (BI/EV691)
- Evolution in Changing Seas Guam
- Phenotypic Plasticity Seminar (BI/EV691)
Outreach examples:
